STANDARD AIR VALVE ADAPTOR - Made of high-quality copper and reinforced nylon, sturdy and durable, meet the standard air pump adaptor which connects with an air compressor or bike/tire pump directly. QUICK INFLATION - Use your compressor or tire pump to easily reach the suggested PSI (Tips: We suggest that you can inflate the board to about 3 or 4 PSI with a hand pump) within 5-10mins. its very quickly inflated and easy to convert. EASY TO USE - When the valve is in the closed position, insert the valve fitting and rotate it to lock in place, remove the cap on the fitting, and connect a standard air pump. Easy to use, even novices can quickly complete inflation. CONVENIENT TO CARRY - Size:8*3.5CM/3.15*1.38Inch,40g/pcs; Included 2Pieces of Air Valve Adaptor for one package. lightweight and portable, easy to carry. you can even put it in your pocket when you go out. WIDE APPLICATION - Universal air valve adapter is an essential tool for water sports, suitable for most high-pressure air valve Inflatable equipment, such as Stand Up Paddleboard, Rubber Boats, Dinghy, Inflatable Pools, and Beds.