Product Material: copper + rubber Size: about 8 cm in length, about 3.5 cm in diameter, error of about 1 cm Quantity: 1 piece Package content: 1 * SUP Paddle Nozzle 1. Inflatable SUP Pump Adapter: No special air pump is needed, the conversion head can connect the ordinary inflation tube to the paddle. Widely used for all kinds of paddle boards, canoes, rubber boats, assault boats, sinks, floating rows, inflatable beds, kayaks. 2. High Quality Material: Made of high strength hard plastic and alloy, solid structure and labor-saving, strong sealing and anti-leakage. 3. Easy to Use: With the valve closed, insert the Schrader valve fitting and twist until it clicks into place. Remove the cap on the fitting and connect a standard electric pump. 4. Easy Conversion Fast InflationThis air valve adapter is easy to convert and has high inflation efficiency. Use your car or bike tire inflator to easily reach the recommended PSI within 5-10 minutes, the larger the inflator pump or compressor. use, the faster the inflation. 5. CautionBecause the compressors/tire pumps need some time to inflate, it is recommended to inflate the board by hand until it is difficult to inflate, and then use the adapter to fill up the pressure.