Made of TPU food grade environmental protection and waterproof material. Can store 20L capacity of water;Environmental protection and safety, no smell, wear resistance and corrosion resistance, does not contain any harmful substances;Below the water bag is provided with a water temperature warning bar;Multi-purpose: such as bathing, preservation of clean water, air filling bags can provide buoyancy to float in the water, storage of clean fresh water, camping barbecues for cleaning food. 10.2" L x 7.1" W x 24.4" H