Cold Pack, 4 x 6 In., 6 oz., PK 48

Cold Pack, 4 x 6 In., 6 oz., PK 48

Cold Pack, Viscous Gel Refrigerant, White, Length 4 In., Width 6 In., Weight 6 oz., Features Biodegradable, Package Quantity 48 Insulated Shipping CartonsKeep perishables and pharmaceuticals refrigerated during shipping. 2-pc. cartons include tight-fitting lid and molded, expanded polystyrene body, with white corrugated box exterior. Leakproof Freeze Packs and Re-Freez-R-Brix feature hermetically sealed, nontoxic refrigerants which can stay cold for days.