1. FUNCTION: A professionally manufactured inflatable SUP valve connector, which is easy to convert and inflate quickly. Using a compressor or tire pump, you can easily reach the recommended PSI in 5-10 minutes. 2. USE: When the valve is closed, insert the SUP air pump converter and rotate it to complete the locking, then remove the top cover and connect the standard electric pump, without the need for a special air pump for the paddle. 3. FLEXIBLE: Precise workmanship, SUP pump adapter is exquisite in design, firm in connection, stable in operation, weight: about 40g, size: length about 8cm, diameter about 3.5cm, easy to carry and store. 4. APPLICATION: This universal air pumping conversion adapter can directly connect electric air pump and manual air pump, and is widely used in SUP paddles, rubber boats, inflatable boats, canoes, inflatable boats, etc. 5. MATERIAL: SUP pump adapter is made of high-quality copper and rubber. It has solid structure, strong pressure bearing strength, good sealing and high pressure resistance, and supports long-term stable operation. Specifications: Color: black + gray Material: copper + rubber Size: length about 8cm, diameter about 3.5cm Package includes: 1pc*Adaptor