Features:Connect between inflation pump air hose and the air valve, fit for inflatable boat or kayak. Each air valve adapter set including 2 rubber rings of different thickness, but the same diameter, please find the right ring which can fit the valve better. Suitable for a variety of 6-section and 8-section valves, is a very practical small accessories. Made of stable PVC material, durable and not easy to damage or deform. A great small accessory for your boat, you can have one. Specification:Condition: Brand NewMaterial: PVCColor: BlackLength: Approx. 5.8cm / 2.3inOutside Diameter: Approx. 2.1cm / 0.8inInner Diameter: Approx. 1.8cm / 0.7inWeight: Approx. 23gPackage List:1 x Adapter2 x Rings.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.