Dry Ice Packs for Shipping - Disposable ice Packs - 48+ Hour Freeze Power - BPA Free - 12 Pack Bulk – 15x12in / 5x3in – 3 lb – Long Lasting Reusable Hielo Seco

These are mini ice packs in a sheet. There is a porous membrane material side and a plastic side that make up a pouch filled with insta-snow powder. Once activated with water, the snow fluffs up into a gel that once frozen will retain the cold. My daughter ran it under the tap for 45 seconds and squished the inside around to throughly mix the powder and get a good reconstitution. We then blot dry and put it into the freezer overnight. I like the functionality of being able to break them apart into little pieces to put in various container sizes. In this case, we used it for a picnic so I kept the full sheet. During the hike, kids got hot so they took pieces of this and each one had a nice cooling ice pack, and because of the soft membrane side, they were able to put it on their skin with feeling cold burns. At the end of the day, this is put back into the freezer for next time. It seemed study as the pack didn’t burst open or leak, even with the kid’s tossing them around and playing with them. The ice in the picnic basket stayed frozen for a few hours, and then was able to still maintain cooled temperatures for up to 6hours in total (as a whole unit), the pieces the kids took apart to play with only lasted 1.5hours before it was no longer cold. Good value for the number of sheets you get. Worth it for everyday use for lunch bags, boo boo packs, quick cool off, fevers, etc.

Work perfect! I am using them in a small lunchbox, placing an automatic pet food feeder in it to keep wet food cold. They stay frozen for up to 10+ hours (indoors) with no leaking and kitties food stays chilled. Love the size of them.

I’m a surrogate and this was perfect for shipping breast milk to another state!

I love the size. You can use a full sheet or just a few. It took 6 hours to freeze them stacked and half that time not stacked.

Good product

Perfect fornshipping my body butters in want weather

These are beautiful packs. I thought they’d be so perfect considering the reviews and they’re cute.However, I used them for an overnight shipping and the package arrived to my mother very warm and they did not stay cold at all. 😟

Easy to use and better than having a water filled cooler after a couple days of camping!