Selectable size 3 sizes (5L/10L/15L) water tank for choice which can withstand water temperature from -20 degree ~ 80 degree. . Foldable material: BPA-free food grade PE plastic, environmental protection and safety, long-term storage of drinking water, replaces traditional water bags or water containers, does not affect water quality, foldable design for easy storage. . Water Bucket Features Collapsible to save space, can fold flat when not in use. With wide bottle rim and on/off tap, easy to fill and pour. Dry in the open air. . Good design and easy to use This waterproof and collapsible container is an integrated design. The outlet can adjust the water volume well, equipped with a nozzle, very convenient. . Multiple use: the portable water carrier is mobile, ideal for any boat, car, caravan. Perfect for camping, hiking, climbing, emergency, sports, picnic, travel, outdoor activities. .