Keep perishables at a constant and desirable temperature during extended shipment times. The food-safe formula stays colder than ice to help ensure your products stay cool and fresh. Made with a food-safe, nontoxic gel formula that stays colder than ice. Easy way to extend the shipping time of perishables. Tough, leak-resistant packaging can be used over and over. Ice-Brix(TM) Cold Packs, 32 oz, 8in. x 8in. x 1 1/2in., Box Of 9 is one of many Cold Packs for Shipping available through Office Depot. Made by Ice-Brix.