Foldable water bag with built-in water tap: New function: water tap, more convenient to use Just tear off the plastic cap, lift both ends of the faucet with two fingers, and youre ready to go You can regulate the amount of water by lifting the wings, the tap is also removable. It can be pulled out and washed directly, and when reassembling, just slide the tap to the original position very easy to use.Premium Safe Material: The collapsible water jug is made of high quality PET-PA-PE plastic, which is safe, non-toxic and BPA-free; transparent, soft, odourless, tasteless, elastic, durable and reusable. Unlike ordinary drink pouches, the large screw cap provides a leak-proof seal, the 1. 6 inch bottle mouth is easy to fill and pour Space-saving and portable: Total 2 foldable water tanks (5 l + 10 l), foldable and ultra-light, folded to a smaller size when empty, easy to store and carry, thickened hook design, not easy to hurt hands, portable, can be hung on a backpack. Different sizes of water tanks can meet your different needs.Wide Usage: Portable water tanks are detachable water tanks, ideal for water and other beverages for camping, gardens, cemeteries, holidays, hiking, hunting, travelling, outdoor, picnics, barbecue, etc. Also ideal as a gas bag for emergenciesEasy to use: It can be folded when not in use and can be used as a water dispenser when full.Note: Before freezing, the full amount of water should not exceed half the volume to avoid this freeze and burst. Cut the bag open if you need homemade ice cubes.