Drink in the Box freezer gel pack for 8 oz Drink in the Box, to keep drinks cold. Made of a safe, soft, hand washable Polyethylene exterior, with freezer gel interior, and is CPSA (Child Protection Safety Association) approved safe. Just keep Ice on the Box in the freezer, then slip on your Drink in the Box, and the bottom stirrup holds it in place so your children can have cold drinks at lunch! Specifically designed for use with the Drink in the Box (sold separately), a revolutionary patented designed reusable drink box. It’s safe, completely chemical free, easy to clean and comes in 4 beautiful colors. Drink in the Box is the world’s only reusable drink box, is patented, BPA and Phthalate-free, won’t squirt or leak, and helps to hydrate your kids without all the sugar and risk of mold, or impact to the environment of a disposable juice box. 12oz capacity. 100% spill proof. Square shape fits into lunchboxes. Dishwasher safe. BPA and Phthalate-free. Made from USA-Tritan.