Dynarex Instant Cold Packs with Urea - Disposable Ice Packs for Injuries, Muscle & Joint Pain, Cramps, Headache - Quick Cold Compress Packs for Sprain & Bruises - Individually Packed - 24-Pack, 4"x5"

I brought these camping because I struggle with overheating after recovering from covid. (my oxygen goes down when I'm too hot). I was pleased with how well these worked. They only stay cold for maybe 20 minutes, but when they are cold, they are surprisingly cold. I didn't even have to use the whole pack either, so I packed them away for the next camping trip. (I used one in the cooler too, and if insulated they actually stay pretty cool for a few hours, they are a great option to keep your food cold too!)

Great instant ice pack and just the right size to form around a shoulder, knee, hand or also at the back of the neck for a headache. They stay cold for about thirty minutes. I have tried refreezing them and it does work but it's not as formable and gets very hard.

I just tried these for the first time - usually I get the full-size ones, also by Dynarex. These are about 1/2 to 2/3 of that size. I found both sizes effective and relatively easy to use. Have never experienced a leak or failure. My observations on these small packs as compared to the full size ones: Pros:: Easier to store/takes up less space in car, gym bag, First Aid kit Lower price Gets very cold, same as the large ones Easier to activate (you have to squeeze the pack, and the big ones can be a challenge if you have arthritis) Cons: Treats a smaller area - good for small bumps/areas of pain but would be too small to wrap around a limb Doesn't stay cold as long So I would recommend either one. Next time I will probably get the bigger ones because I use them on my neck.

Quick acting, these get real cold instantly. Break the reservoir inside and shake up. The packs are small so they don’t stay cold for too long but do their job well enough for their size.

I just used the product and very disappointed. I wish I would have read the reviews first. The first bag when I was finally able to activate it lasted 5 minutes at the most. I will look for another product to use.