Strong Commercial Grade Freezer Gel Packs. Reusable long lasting freezer packs are leak proof and are safe for use with food products. Freezer packs extend shipping times by keeping products cool during long transport cycles. Freezer packs keep perishables at a constant cool temperature for days when used with a properly insulated shipping container or box, and the correct ratio of freezer packs to product. Recommended ratio: one pound of freezer packs per three pounds of product. Long lasting and leak proof freezer packs will last for countless shipping cycles. Gel refrigerant packs are reusable and safe for use with food. Use with insulated foam shipping boxes. Minimum Order: 1 Case 4" x 6-1/2" x 3/4" Freezer Pack - 8 oz. Quantity per Case: 36 Weight: 18.5 lbs.