Polar Tech RE-FREEZ-R-BRIX RB60 Foam Refrigerant Packs, 64oz Capacity (Case of 3)

Lasts surprisingly long. Freezes like a brick. We have 2 of the large ones, and 3 smaller ones. Usually use a mix of them depending on the size of the cooler. Two of these kept our cooler cold all weekend, and items in the cooler were colder than drinks we kept in the hotel fridge. We use them for weekend sports tournaments, and they really work well. Better than dry ice that we tried.

Works as well as Yeti Ice or other high end reusable ice and lasts longer than frozen bottle of water. Being foam less weight than all gel or water and sizes to match most any cooler. Even if you pop a hole in the vinyl as long as you keep them froze no leaks. I use them every week during the summer for use on boat or packing food for travel back and forth.

Went on a trip recently and this kept my food cold. It’s large and a bit heavy, but works great. Love it.

Last's forever! I use this for Extra large coolers during outdoor parties. The product stays cool for more than 10 hours under normal conditions.

I use these for keeping my food cold while I work. They work extremely well!

Great freezer bricks, stay cold for hours