Product introduction: collapsible water bag， when you do outdoor activities， this water bag to carry and convenient small， does not occupy a space， when you want to drink water， fold the water bag can hold 10 liters of water， bring you convenience.Material: PVC.Capacity：10L. When you take part in outdoor activities， I guess this fold bucket can bring you convenience. Operation method:Add Water: open the lid， can meet the water， pick up， after the expiration of the screw down the lid.pour Water: pull red lid white rotation to NO one party can pour water， spin the white is turned OFF， you can shut out of the water， very easy and convenient use.