PREMIUM QUALITYInflatable boat air valve is made of high quality ABS plastic, sturdy, durable and has a long service life.LEAK-PROOFInflatable boat spiral air plugs are sealed and leakproof, making it easier for you to use this air valve cover, stable inflation.WIDE APPLICABLEInflatable valve cap is suitable for kayaks, dinghies, inflatable boats, surfboards, etc.PORTABLEInflatable boat air plugs have a unique portable design, easy to carry and use anywhere, anytime.REPLACEMENTThis marine air valve is easy to replace, only takes one minute, it is a great accessory for boating lovers. Specification:Material: ABSType: One way inflation valveColor: BlackQuantity: 2 pcsDiameter of Thread Part: Approx. 22 mm / 0.87 inchLength of Thread Part: Approx. 16 mm / 0.62 inchWeight: Approx. 40 g Package List:2 * Air Valves Noted:Make sure this item fit your boat before you purchase it.