Car spray valve: 1.Longer shelf time. 2.Near 100% emptying. 3.Can be used in all angles. 4.Less noise when spraying. NameBag on valveOther nameAerosol valve bag, Valve in bagStructure1"Valve, Mounting Cup, Outer gasket, Inner gasket, Stem, Spring, Housing, Bag-on-valve connector, Aluminum foil pocket(4 layers).MaterialTin, Aluminium, Nylon, PE etc.ApplicationShower gels.Shaving gels.Shaving foam. ...