Conversion & Quick Inflation：This air adapter is easy to conversion, and has high efficiency inflation.Use your car or bike tire inflator to easily reach recommended PSI within 5-10min, the larger the inflation pump or compressor you use, the faster the schrader inflation.EasyPlease allow some differences due to manual measurement. Thank you for your kindly understanding.Due to the light and screen difference, the item's color may be slightly different from the pictures.To Use： With the in the closed position, insert the Schrader fitting and rotate to lock in place. Remove the cap on the fitting, and connect athe compressors/tire pumps take time to inflate, it is recommended to inflate the board by hand until it becomes difficult to pump, and then use the adaptor to top off the pressure.Easypaddle boards, canoes, rubber boats, assault boats, flushing pools, floating rows, inflatable beds, kayaks.HighAttention：AsPump Adaptor:No special air pump is needed, the conversion head can connect inflation tube to the paddle. Widely applicable to all kinds ofInflatablestandard electric pump.Quality Material：Made from high strength hard plastic and alloy, solid structure and saving labor, strong seal and anti-leakage.