High Quality Materials: This Sup Pump Adapter Is Made Of High Quality Plastic Materials, It Is Quite Sturdy And Durable. High Pressure Resistance, Strong Sealing Easy To Use: With The Valve In The Closed Position, Insert The Valve Fitting And Twist It To Lock It In Place. Remove The Fitting Cap And Connect A Standard Electric Pump. Quick Inflation: This Inflatable Sup Valve Adapter Has Easy Conversion And Its Inflation Efficiency Is Quite High. Use Your Compressor Or Tire Pump To Easily Reach The Suggested Psi Within 5-10 Minutes. Lightweight And Portable: Adopt Fine Workmanship And Delicate Design, Convenient To Use. Lightweight And Portable Individual Sealed Package, Easy To Use And Carry. Universal Valve Adapter: Widely Applicable To Paddle Board, Canoe, Inflatable Boat, Assault Boat, Inflatable Swimming Pool, The Floating Row, The Inflatable Bed, Etc.