4-1/2" x 4" x 3/4" White Foam Refrigerant Re-Freeze-R-Brix 7.5 oz.

The 4 1/2" x 4" x 3/4" 7 1/2 oz Re-Freez-R Brix cold pack will keep your perishable items cool for over 12 days and at a uniform temperature. Freez R Brix are great for extending shipping times for temperature sensitive products and are especially useful for pharmaceuticals, blood products, lab samples, and other bio products. Each bag is made of a of non-toxic heavy duty plastic pouch and special gel that is able to stay much colder than ice. Our cold packs are leak proof and completely reusable.