Polar Tech Industries Ice-Brix cold packs. Ice-Brix contains a specially formulated leakproof, long lasting, viscous gel refrigerant made with non-toxic ingredients listed as FDA GRAS. Rated best in all aspects. Ice-Brix is the ultimate in refrigerant cold packs. Features include: Long lasting cold; Efficient transfer of energy; Leakproof; Reusable; Variety of sizes; Economical; Custom imprinting. Ice-Brix poly bags are sealed in a heavy duty plastic pouch and keep perishable products at a constant and desirable temperature. Kraft color. Measures 8-inches length by 8-inches width by 1-1/2-inches height. Weights 32 oz.