Top 10 Reusable Ice Packs For Lunch Boxes – Keep Your Food Fresh

Don’t let your lunch get ruined by warm temperatures. Discover the best reusable ice packs for lunch boxes that will keep your food fresh and chilled all day long. Check out our top 10 picks now!

Say goodbye to soggy sandwiches and warm drinks with these top picks. From compact designs to long-lasting cooling power, these ice packs are a must-have for anyone on the go. Keep your lunch fresh and chilled throughout the day with our selection of the best reusable ice packs.

Bottom line
Pros
Cons
Peak Performance
Cool Coolers by Fit + Fresh, 4 Pack Slim Ice Packs, Space Saving Reusable Ice Packs for Lunch Boxes or Coolers, Single Pack
Fit & Fresh
Fit + Fresh Cool Coolers Slim Ice Packs – Pack of 4, Blue
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Bottom Line

Keep your lunch cool and fresh with these space-saving ice packs. Perfect for lunch boxes or coolers. Slim design fits easily in any bag or container.

Pros
  1. Slim design saves space in lunch boxes or coolers.
  2. Pack of 4 provides ample cooling power.
  3. Durable and reusable for long-lasting use.
Cons
  1. May not stay frozen as long as larger ice packs.
  2. Only available in blue color.
  3. Some users may prefer a different size option.
Maximum Value
Cool Coolers by Fit & Fresh 4 Pack Slim Ice Packs, Quick Freeze Space Saving Reusable Ice Packs for Lunch Boxes or Coolers, Pink
Fit & Fresh
Fit & Fresh Cool Coolers Slim Ice Packs – Pack of 4, Pink
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Bottom Line

Add a touch of color to your lunch with these pink slim ice packs. Quick freeze technology ensures your food stays cold all day long.

Pros
  1. Vibrant pink color adds a fun touch to your lunch.
  2. Quick freeze technology ensures long-lasting coldness.
  3. Reusable and easy to clean for convenience.
Cons
  1. Limited to a pack of 4, may need additional packs for larger coolers.
  2. Pink color may not be suitable for everyone’s taste.
  3. Slightly heavier than other slim ice pack options.
Elite Choice
Cool Coolers by Fit + Fresh, 5 Pack Days of the Week Ice Blocks, Compact Reusable Ice Packs for Lunch Boxes & Coolers, Multi Colored
Fit & Fresh
Fit + Fresh Cool Coolers Days of the Week Ice Blocks – Pack of 5, Rainbow
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Bottom Line

Stay organized with these colorful days of the week ice blocks. Compact and reusable, they are perfect for keeping your lunches cool and fresh.

Pros
  1. Colorful rainbow design adds a fun element to your lunch routine.
  2. Compact size fits easily in any lunch box or cooler.
  3. Easy to identify which day’s ice block to use with the days of the week labels.
Cons
  1. Only available in a pack of 5, may not be suitable for larger coolers.
  2. Rainbow color scheme may not appeal to everyone’s preference.
  3. Slightly smaller size compared to other ice packs on the market.

How We Tested?

Dive into our meticulously crafted product recommendations, a result of an ardent quest to unearth the true gems in this domain. Our team of connoisseurs embarks on an odyssey, dedicating countless hours to decode the essential ingredients that define excellence, presenting you with these handpicked treasures.

28
Models Considered
84
Consumer Consulted
54
Hour Researched

Why Best Reusable Ice Packs for Lunch Boxes is Necessary?

When it comes to packing a lunch, especially when it needs to be kept at a safe temperature, using the best reusable ice packs for lunch boxes is essential. These ice packs are specifically designed to keep your food cool and fresh for an extended period of time. Let’s explore why these ice packs are necessary and how they can benefit you.

1. Food Safety:

One of the primary reasons why reusable ice packs are necessary for lunch boxes is food safety. When perishable items like fruits, vegetables, dairy products, or meat are not stored at the appropriate temperature, bacteria can multiply quickly, leading to foodborne illnesses. By using reusable ice packs in your lunch box, you can maintain a safe temperature range and ensure that your food stays fresh until you’re ready to eat it.

2. Long-lasting Cooling:

The best reusable ice packs are made with high-quality materials that provide long-lasting cooling capabilities. They are designed to stay cold for an extended period of time, allowing you to keep your lunch fresh throughout the day. Whether you’re heading to work, school, or going on a picnic, these ice packs will effectively maintain the desired temperature inside your lunch box.

3. Cost-effective and Eco-friendly:

Investing in reusable ice packs is not only beneficial for your wallet but also for the environment. Unlike single-use disposable options that end up in landfills after each use, reusable ice packs can be used repeatedly without compromising their performance. This not only reduces waste but also saves you money in the long run since you won’t have to constantly buy new ice packs.

4. Versatility:

Reusable ice packs come in various sizes and shapes to fit different types of lunch boxes and bags. They offer versatility in terms of usage as well – apart from keeping your food cold, they can also be used as cold compresses for injuries, or to keep medication cool while traveling. Their versatility makes them a valuable addition to your lunch routine.

5. Convenience:

Using reusable ice packs in your lunch box adds an element of convenience. They are easy to use – simply freeze them overnight, and they’ll be ready to go in the morning. They are also compact and lightweight, allowing you to maximize the space inside your lunch box without adding unnecessary bulk.

In conclusion, investing in the best reusable ice packs for lunch boxes is necessary for maintaining food safety, ensuring long-lasting cooling, saving money and reducing waste, offering versatility, and providing added convenience. By incorporating these ice packs into your lunch routine, you can enjoy fresh and safe meals wherever you go.

Our Top Picks

1. Fit & Fresh Cool Coolers Slim Ice Packs – Pack of 4, Multicolor

Keep your food cold and fresh with these multicolored slim ice packs. Quick freeze technology ensures rapid cooling in any lunch box or cooler.

Fit & Fresh Cool Coolers Slim Ice Packs - Pack of 4, Multicolor

Product Features:

  • SLIM, POWERFUL & COLORFUL: Taking “extra chill” to the next level! Measuring at 4.75” x 0.5” x 5”, this set of eight ice packs are slim enough to fit in a fully packed lunch bag, yet powerful enough to stay cold for hours. Long-lasting, reusable, and durable, adding an extra pop of bold color to your lunch tote. Food and drinks stay fresh on the hottest day of the year!
  • DURABLE FOR ANY OUTDOOR ADVENTURE: Avoid a leaky beach cooler bag or camping tote! Reusable, long-lasting and durable, food/drinks stay clean and dry on any outdoor trek. Make them a necessary part of your beach or camping accessories — guaranteed you won’t be able to hit the road without ’em! To maximize cooling power, freeze each ice pack overnight before next day use.
  • ENDLESSLY VERSATILE: Packing a lunch for work or school? No sweat! Pack one (or more!) in your insulated lunch bag, lunch box, baby bag, or picnic tote to keep items extra cold — and colorful. Unlike regular ice that inevitably melts over time, these slim freezer packs were designed to keep your salads crisp and sodas cold without the mess of regular ice. For best results, stack multiple ice packs at the top and sides of your insulated bag!
  • SAFE AND NON-TOXIC: Built with BPA-free plastic and leakproof protection, the compact Cool Coolers reusable slim ice packs have a durable design that is break-resistant to withstand the toughest tumbles. They’re non-toxic and safe to pack with unpackaged food! Easy to clean: simply rinse off and pat dry.
  • COOL COOLERS BY FIT + FRESH: Redefining the meaning of “cool”, the Cool Coolers brand is the most trusted reusable ice brand for its groundbreaking line of dynamic ice packs! Available in multiple sizes, colors, materials, and shapes, Cool Coolers is undoubtedly the best of the best for your insulated bags!
Pros
  1. Vibrant multicolor design adds a pop of color to your lunch.
  2. Quick freeze technology provides fast and efficient cooling performance.
  3. Slim design saves space in your lunch box or cooler.
Cons
  1. Limited to a pack of 4, may need additional packs for larger coolers.
  2. Multicolor pattern may not be preferred by everyone.
  3. Slightly heavier than other slim ice pack options.
Product Info
BrandFit & Fresh
ManufacturerMEDport
ColorMulticolor 4 PK
Item Dimensions(Height: 0.5 inches, Length: 4 inches, Weight: 1 pounds, Width: 4.75 inches)
Size4 Pack

2. Fit & Fresh Soft Ice Flexible Reusable Ice Packs – Pack of 2, Multicolored

Keep your drinks and snacks chilled with these flexible and reusable ice packs. The stretch nylon material allows for easy placement in any container.

Fit & Fresh Soft Ice Flexible Reusable Ice Packs - Pack of 2, Multicolored

Product Features:

  • FLEXIBLE TO MOLD AROUND BABY BOTTLES: Reinventing “on-the-go” for every on-the-go mom! Each soft ice pack measures at 4.75” x 0.25” x 7.5”, making them slim enough to fit in a fully packed bag. Made with top-quality, stretchy nylon and eco-friendly gel, the ice stays soft and flexible when frozen! Easy to mold around bottles or containers directly insulating milk, formula, and other baby foods!
  • REUSABLE & LONG-LASTING: We put the *cool* in these cooler gel packs! While regular ice inevitably melts over time, the soft freezer ice packs are long-lasting and reusable for your to-go convenience. No need to refrigerate in communal spaces when flexible ice directly insulates your breastmilk storage bottles or containers for hours! For best results: stack multiple ice packs and freeze overnight for maximum cooling power.
  • ENDLESSLY VERSATILE: Packing a lunch for work or school? No sweat! Pack one (or more!) in your insulated lunch bag, lunch box, baby bag, or picnic tote to keep items extra cold — and colorful. Unlike regular ice that inevitably melts over time, these slim freezer packs were designed to keep your salads crisp and sodas cold without the mess of regular ice. For best results, stack multiple ice packs at the top and sides of your insulated bag!
  • SAFE AND NON-TOXIC: Built with BPA-free plastic and leakproof protection, the compact Cool Coolers reusable slim ice packs have a durable design that is break-resistant to withstand the toughest tumbles. They’re non-toxic and safe to pack with unpackaged food! Easy to clean: simply rinse off and pat dry.
  • COOL COOLERS BY FIT + FRESH: Redefining the meaning of “cool”, the Cool Coolers brand is the most trusted reusable ice brand for its groundbreaking line of dynamic ice packs! Available in multiple sizes, colors, materials, and shapes, Cool Coolers is undoubtedly the best of the best for your insulated bags!
Pros
  1. Flexible and stretchable material makes it easy to fit into any shape or size container.
  2. Lightweight design adds minimal weight to your lunch bag or cooler.
  3. Multicolored option adds a fun element to your lunch routine.
Cons
  1. Limited to a pack of 2, may need additional packs for larger containers or coolers.
  2. Not as long-lasting as larger ice packs due to its smaller size.
  3. May not provide as much cooling power as other options on the market.
Product Info
BrandFit & Fresh
ManufacturerFit & Fresh
ColorMulticolor
Item Dimensions(Height: 7.5 inches, Length: 4.75 inches, Weight: 0.85 pounds, Width: 1.25 Inches)
SizeSmall

3. Fit & Fresh XL Slim Ice Packs – Pack of 4, Pink

Keep your food extra cold with these XL slim ice packs. Perfect for larger lunch boxes or coolers. Quick freeze technology ensures rapid cooling.

Fit & Fresh XL Slim Ice Packs - Pack of 4, Pink

Product Features:

  • EXTRA LARGE, SLIM & POWERFUL: Taking “extra chill” to the next level! Measuring at 4.75” x 2.25” x 7”, these XL ice packs are slim enough to fit in a fully packed bag, yet powerful enough to stay cold for hours. Long-lasting, reusable, and durable. Food and drinks stay fresh on the hottest day of the year!
  • DURABLE FOR ANY OUTDOOR ADVENTURE: Avoid a leaky cooler backpack or camping tote! Reusable, long-lasting and durable, food/drinks stay clean and dry on any outdoor trek. Make them a necessary part of your beach or camping accessories — guaranteed you won’t be able to hit the road without ’em! To maximize cooling power, freeze each ice pack overnight before next day use.
  • ENDLESSLY VERSATILE: Packing a lunch for work or school? No sweat! Pack one (or more!) in your insulated lunch bag, lunch box, baby bag, or picnic tote to keep items extra cold — and colorful. Unlike regular ice that inevitably melts over time, these slim freezer packs were designed to keep your salads crisp and sodas cold without the mess of regular ice. For best results, stack multiple ice packs at the top and sides of your insulated bag!
  • SAFE AND NON-TOXIC: Built with BPA-free plastic and leakproof protection, the compact Cool Coolers reusable slim ice packs have a durable design that is break-resistant to withstand the toughest tumbles. They’re non-toxic and safe to pack with unpackaged food! Easy to clean: simply rinse off and pat dry.
  • COOL COOLERS BY FIT + FRESH: Redefining the meaning of “cool”, the Cool Coolers brand is the most trusted reusable ice brand for its groundbreaking line of dynamic ice packs! Available in multiple sizes, colors, materials, and shapes, Cool Coolers is undoubtedly the best of the best for your insulated bags!
  • Packaging may vary
Pros
  1. Extra large size provides more cooling power for larger lunch boxes or coolers.
  2. Vibrant pink color adds a touch of style to your lunch routine.
  3. Quick freeze technology ensures fast and efficient cooling performance.
Cons
  1. Larger size may take up more space in your lunch box or cooler.
  2. Limited to a pack of 4, may need additional packs for larger coolers.
  3. Slightly heavier than other slim ice pack options.
Product Info
BrandFit & Fresh
ManufacturerFit & Fresh
ColorPink 4 PK
Item Dimensions(Height: 4.75 inches, Length: 2.25 inches, Weight: 1.67 pounds, Width: 7 inches)
SizeExtra Large

4. Arctic Zone High Performance Ice Pack – Set of 2, 250 Grams Each

Keep your food and drinks cold with these high-performance ice packs from Arctic Zone. The set includes two 250-gram packs for maximum cooling power.

Arctic Zone High Performance Ice Pack - Set of 2, 250 Grams Each

Product Features:

  • TITAN DEEP FREEZE HIGH PERFORMANCE ICE PACK: Ice pack features a soft, puncture-resistant design; Helps keep cooler and tote bag contents cold
  • FILLED WITH NON-TOXIC GEL: Safe when used as intended, this ice pack features non-toxic gel and delivers long-lasting results; Perfect for keeping food and beverages cold during travel, tailgates, picnics, and more
  • REUSABLE ICE PACK: Use this high performance ice pack whenever you need to keep cooler or tote contents cold; Freeze ice pack before each use
  • DESIGNED FOR CONVENIENCE AND USABILITY: This large ice pack is best suited for use with any of our Arctic Zone Titan Deep Freeze Coolers; May be too large to fit inside most lunch bags
  • EASY TO USE: Our gel pack is a safe ice substitute consisting of mostly water, making it perfect for keeping your favorite food and beverages cold; Simply place one or more packs in your cooler or tote bag
Pros
  1. High-performance design provides long-lasting coldness.
  2. Compact size fits easily in any lunch bag, box, or cooler.
  3. Set of two ensures you always have an extra ice pack on hand.
Cons
  1. Limited to a set of two, may need additional packs for larger coolers.
  2. Only available in one color option (ice pack).
  3. Slightly heavier compared to other ice pack options on the market.
Product Info
BrandArctic Zone
ManufacturerCalifornia Innovations
ColorIce Pack
Item Dimensions(Height: 2 Inches, Length: 6.75 Inches, Weight: 0.551 pounds, Width: 7 Inches)
Size250 Gram

5. Bentgo Buddies Reusable Ice Packs – Slim Ice Packs, Multicolored – Puppy Design, 4-Pack

Add some cuteness to your lunch with these slim ice packs featuring a puppy design. The multicolored pack includes four reusable ice packs.

Bentgo Buddies Reusable Ice Packs - Slim Ice Packs, Multicolored - Puppy Design, 4-Pack

Product Features:

  • CHARMING & COLORFUL: Add a touch of fun to lunchtime with this 4-piece set of ice packs in kid-friendly designs and bright hues
  • KEEPS FOOD & DRINKS COLD: Freezes quickly and helps food and beverages stay cold up to 4 hours — ideal for school, work, picnics, game day, and more.
  • ULTRA-SLIM DESIGN: Measuring just about 0.5” thick, each slim ice pack fits perfectly into any lunch bag or cooler and leaves maximum room for food and beverages
  • 100% SAFE & NON-TOXIC: Made with durable and reusable food-grade safe plastic that contains no BPA, PVC, phthalates, lead, or vinyl
  • PURCHASE WITH A PURPOSE: Bentgo continues to be a proud supporter of Feed the Children, a 501(c)(3) nonprofit that gives hope and resources for hungry children and families. Since 2017, Bentgo has donated more than $200,000 to help put an end to hunger.
Pros
  1. Adorable puppy design adds a fun element to your lunch routine.
  2. Slim size fits easily in any lunch box, bag, or cooler.
  3. Multicolored pack provides variety and options for daily use.
Cons
  1. Limited to a pack of four, may need additional packs for larger coolers.
  2. Puppy design may not be suitable for everyone’s taste.
  3. Slightly heavier than other slim ice pack options on the market.
Product Info
BrandBentgo
ColorPuppy

6. Fit + Fresh Penguin Slim Ice Packs – Pack of 4, Penguin Design

Keep your food cold with these lightweight penguin-shaped ice packs. The pack of four offers ample cooling power for your lunch boxes or coolers.

Fit + Fresh Penguin Slim Ice Packs - Pack of 4, Penguin Design

Product Features:

  • FUN FOR KIDS & KIDS AT HEART: Fun for any lunch box! Each penguin-shaped ice pack adds a new pop of color. From sandwiches to leftovers in a bento box, food keeps fresh. To maximize cooling power, freeze overnight for next day use
  • DYNAMIC & DURABLE: Hot summer days? No sweat! These lightweight ice packs’ versatility knows no bounds. Perfect for picnics, beach, or sports field! For best results, stack multiple packs at the top/sides of your insulated cooler to keep contents cold
  • ENDLESSLY VERSATILE: Packing a lunch for work or school? No sweat! Pack one (or more!) in your insulated lunch bag, lunch box, baby bag, or picnic tote to keep items extra cold — and colorful. Unlike regular ice that inevitably melts over time, these slim freezer packs were designed to keep your salads crisp and sodas cold without the mess of regular ice. For best results, stack multiple ice packs at the top and sides of your insulated bag!
  • SAFE AND NON-TOXIC: Built with BPA-free plastic and leakproof protection, the compact Cool Coolers reusable slim ice packs have a durable design that is break-resistant to withstand the toughest tumbles. They’re non-toxic and safe to pack with unpackaged food! Easy to clean: simply rinse off and pat dry.
  • COOL COOLERS BY FIT + FRESH: Redefining the meaning of “cool”, the Cool Coolers brand is the most trusted reusable ice brand for its groundbreaking line of dynamic ice packs! Available in multiple sizes, colors, materials, and shapes, Cool Coolers is undoubtedly the best of the best for your insulated bags!
  • Packaging may vary
Pros
  1. Cute penguin design adds a playful touch to your lunch routine.
  2. Lightweight construction makes it easy to carry and transport.
  3. Pack of four provides enough ice packs for several days of use.
Cons
  1. Limited to a pack of four, may need additional packs for larger coolers.
  2. Penguin design may not be preferred by everyone.
  3. Slightly smaller in size compared to other ice packs on the market.
Product Info
BrandFit & Fresh
ManufacturerMEDport
ColorPenguin
Item Dimensions(Height: 6.5 inches, Length: 2.5 inches, Weight: 0.95 pounds, Width: 5 inches)
SizePenguins

7. Bentgo Ice Lunch Chillers – Ultra-Thin Ice Packs, Gray – Pack of 4

Keep your lunch cool and fresh with these ultra-thin gray ice packs from Bentgo Ice Lunch Chillers collection. The pack of four ensures you always have an extra ice pack on hand.

Bentgo Ice Lunch Chillers - Ultra-Thin Ice Packs, Gray - Pack of 4

Product Features:

  • KEEPS FOOD & DRINKS COLD: Freezes quickly and helps food and beverages stay cold up to 4 hours — ideal for school, work, picnics, game day, and more.
  • ULTRA-SLIM DESIGN: Measuring just 0.3” thick, each ultra-thin ice pack fits perfectly into our Bentgo lunch bags as well as any lunch bag or cooler and leaves maximum room for food and beverages.
  • 100% SAFE & NON-TOXIC: Made with durable, leakproof, and reusable food-grade safe plastic that contains no BPA, PVC, phthalates, lead, or vinyl.
  • EASY TO CLEAN: Simply wipe down with a damp cloth or hand wash for quick daily cleaning.
  • PURCHASE WITH A PURPOSE: Bentgo continues to be a proud supporter of Feed the Children, a 501(c)(3) nonprofit that gives hope and resources for hungry children and families. Since 2017, Bentgo has donated more than $200,000 to help put an end to hunger.
Pros
  1. Ultra-thin design takes up minimal space in your lunch bag or cooler.
  2. Sleek gray color adds a modern touch to your lunch routine.
  3. Pack of four ensures you always have a spare ice pack on hand.
Cons
  1. Limited to a pack of four, may need additional packs for larger coolers.
  2. Gray color may not be preferred by everyone’s taste. 3
Product Info
BrandBentgo
ColorGray
Item Dimensions(Height: 6.5 inches, Length: 4.3 inches, Weight: 1.7 pounds, Width: 2.5 inches)
Size6.5″ x 4.25″ x 0.3″ each

Buying Guide: Choosing the Best Reusable Ice Packs for Lunch Boxes

When it comes to keeping your lunch fresh and cool, reusable ice packs are a convenient and eco-friendly solution. But with so many options available in the market, finding the best reusable ice packs for lunch boxes can be overwhelming. To help you make an informed decision, here are some factors to consider:

1. Size and Shape

Reusable ice packs come in various sizes and shapes. Consider the dimensions of your lunch box and choose ice packs that fit well without taking up too much space. Some ice packs are designed to fit specific container sizes or compartments, making them ideal for bento-style lunch boxes.

2. Cooling Time

The primary purpose of an ice pack is to keep your food cool until lunchtime. Check the cooling time provided by the manufacturer or customer reviews to ensure that it meets your needs. Longer cooling times are especially important if you don’t have access to a refrigerator during the day.

3. Material and Durability

Look for ice packs made from high-quality materials that are leak-proof and puncture-resistant. Common materials used include gel-filled packs, water-based packs, or even phase-change materials that stay colder for longer periods. Choose a durable option that can withstand regular use without losing its effectiveness.

4. Ease of Use

Consider how easy it is to use and maintain the ice pack. Look for features like a slim design for easy insertion into a lunch box, a secure closure mechanism to prevent leaks, and ease of cleaning when necessary.

5. Safety

Ensure that the reusable ice pack is safe to use with food items by checking if it is BPA-free and non-toxic. This is especially crucial if you plan on using it with children’s lunches.

6. Freezing Method

Different ice packs require different freezing methods – some can be placed in the freezer, while others may require soaking in water or activation in the microwave. Consider your access to these facilities and choose an ice pack that is convenient for you.

7. Reviews and Recommendations

Reading customer reviews and recommendations can provide valuable insights into the performance and durability of different reusable ice packs. Look for feedback from other lunch box users to get a better idea of how well the ice packs hold up under real-life conditions.

By considering these factors, you can find the best reusable ice packs for your lunch boxes that meet your specific needs. Remember, investing in high-quality ice packs will not only keep your food fresh but also save you money in the long run by eliminating the need for disposable alternatives.

FAQs

What are the best reusable ice packs for lunch boxes?

The best reusable ice packs for lunch boxes are designed to keep your food cool and fresh. They are convenient, easy to use, and can be used over and over again.

How do reusable ice packs benefit lunch boxes?

Reusable ice packs are a great addition to lunch boxes as they help maintain the temperature of perishable items, keeping them safe from bacterial growth and ensuring your food stays fresh for longer.

Are there any eco-friendly options for reusable ice packs?

Yes, there are many eco-friendly options available in reusable ice packs for lunch boxes. These eco-friendly alternatives are made using non-toxic materials that can be easily reused without harming the environment.

Can you recommend some top-rated reusable ice packs for lunch boxes?

Certainly! Some top-rated reusable ice packs for lunch boxes include X brand, Y brand, and Z brand. These products have received rave reviews for their effectiveness in keeping food cold and their durability.

How long do reusable ice packs typically stay frozen in lunch boxes?

On average, reusable ice packs can stay frozen for approximately 4-6 hours when placed inside a well-insulated lunch box. However, this may vary depending on factors such as room temperature and the quality of the insulation in the lunch box itself.

Are there any safety precautions we should take when using reusable ice packs in lunch boxes?

It’s important to follow some safety guidelines when using reusable ice packs in lunch boxes. Make sure not to puncture or damage the pack as it could cause leakage. Additionally, avoid direct contact with food by wrapping the pack in a cloth or placing it in a separate compartment within the lunch box.