Engel Coolers 32F 2HP Degree Hard Shell Cooler Pack, 2 Lb, White, Small;

A great dry ice alternative, engel hard shell cooler packs are activated by placing in any freezer and conveniently freeze overnight at 20 degrees F or 32 degrees F for daily use. Engel cooler packs are non-toxic, non-hazardous, re-usable and OUTPERFORM standard gel packs. Engel cooler packs make a great cooler companion to keep cooler contents cold and dry. Works great in boat coolers, lunch boxes, Beach coolers, soft sided coolers and cold shipping. They're available in two sizes -- large (5 pounds) and Small (2 pounds).