Good material: The structure of the valve adapter is strong and durable, long service life, the rubber has good airtightness, the seals material is copper, anti-leakage, can be used safely. Quick inflation: The air valve adapter allows the ordinary air cylinder to connect directly to the board, it fully inflates in 5-10 minutes.The time is determined according to the air pump speedThere is no need for a special board air pump. Lightweight and portable:Portable Valve Adapter is easy to carry, no need to carry different kinds of tools inflatables, dimensions: 7.8 x 3.4 CM. Universal use: The Sup valve adapter Suitable for most inflatable boats, river boats, used for various canoes, sup, kayaks, paddle boards, inflatable boats, etc. Ideal tool: Inflation can be achieved without resorting to heavy inflatable tools, saving you a lot of time.