Amazon Basics Reusable Hard Sided Rectangular Ice Pack, Pack of 4, Small, Blue, 6.5" X 4.3" X 1.2"

These ice packs work great. I bought the small size & travelled across country during 80 degree temps with several different brands of ice packs and these had the best ice retention out of all of them. They lasted 10 hours each day of my drive in various types of coolers. I also like how thin they are for more food space and yet they stay colder than my thicker packs. Highly leak resistant. The handles make them easier to move around the cooler too. Highly recommend.

I use them in my ice chest when I pack my lunch for work.

We've been using these products for about 6 months and loving them. They provide cold and are stackable. They are small enough that you can place them in between items which is great. This is a great product and the price is fair

Work okay.

Good price. Made well.

The size of the ice pack is perfect for a variety of applications. Whether I'm packing it in a lunchbox, cooling beverages in a cooler, or soothing a minor injury, this rectangular ice pack fits the bill. The hard-sided design is a game-changer. Unlike traditional soft-sided ice packs that may leak or lose their shape over time, this rectangular ice pack maintains its form.

They freeze up nicely and last quite a while in the lunch bucket I purchased for my son.

I've purchased 3 or 4 of these sets over the past few year - last pack order a month ago.I've now had three of the ice packs spring a leak when frozen and the blue gel oozes out.Unfortunately, Amazon's return policy cuts off after one month - the latest pack is a month and two days old. Beware !