Keep perishables chilled and at a uniform temperature for up to 12 days during shipping. These cold bricks have a nontoxic formula that is safe for use with lab samples blood products and other sensitive items. Food-safe nontoxic formula can be used with sensitive items like pharmaceuticals bio products and lab samples. Use to keep products chilled at a uniform temperature for up to 12 days during shipping. Rugged plastic pouch is resistant to leaks. Economical bricks can be used over and over again.
