FEATURES Keep your food and drinks cold Ideal for use with soft-sided coolers and small size hard cooler Reusable, economical, versatile and no mess Keeps your items at a lower temperature than ice alone Non-toxic, useful in a variety of situations including for use at home and in first aid kits Hard plastic shell that surrounds nontoxic gel inside INSTRUCTION Freeze for 6 hours before uses Do no open packaging Dispose once packaging seal is broken SPECIFICATION 150ml Dimension : Approx. 12 (L) x 7 (W) x 3.6 (H) cm Product Weight : Approx. 0.3 kg 350ml Dimension : Approx. 19 (L) x 9 (W) x 4 (H) cm Product Weight : Approx. 0.5 kg