Re-Freez-R-Brix Cold Bricks, 4 1/2inH x 4inW x 3/4inD, White, Case Of 42

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.