1. Package contents: You will receive 1 SUP valve adapter, 1 metal air pump adapter, and 4 inflation nozzle designs. Choose the suitable plug according to different interfaces to meet the inflation requirements of most devices. 2. : The compressor SUP adapter is made of quality nylon and alloy, resistant to pressure and temperature, with strong sealing performance, stable structure, and antileakage performance, ensuring durability and functionality for longterm use. 3. Easy inflation: The SUP valve adapter is easy to and offers inflation efficiency. Select the appropriate inflation interface based on your needs and use a compressor or tire inflator to reach the recommended PSI within 5–10 minutes. The larger the pump you use, the faster the inflation speed. 4. Easy to carry and store: No need to carry different inflation tools—this multifunctional valve connection meets all your needs. Note: The small metal key can remove the air core to accelerate inflation but cannot prevent air backflow. Therefore, we recommend loosening the air core instead of removing it.