Penguins Reusable Hinged Ice Mat STAYS COOL LONGER: Keeps drinks, coolers, or lunch boxes cool for 4-6 hours. BUILT IN HINGES: It allows mat to be flexible when frozen. MULTI-PURPOSE: It can be used for 6-can coolers, picnics, lunches, or even on the arms and legs for emergency medical use. BPA-Free: Safe to use with your kids and loved ones. DURABLE AND REUSABLE: Just rinse off as necessary, freeze it and re-use it!