PREMIUM MATERIALS This boat inflatable adapter is made of high quality copper and rubber material, which is strong and durable, high strength and wear-resistant, labor-saving, high-pressure resistant, sealed and leak-proof. It's built to last. Can maintain a long service life. Good performance Inflatable SUP valve adapter, easy to change and quick to inflate. Easily reach the recommended PSI in 5-10 minutes using your compressor or tire pump, the bigger the pump you use, the faster the inflation. APPLICABLE CASE This inflatable SUP valve adapter fits most paddleboards, canoes, dinghies, paddle boats, flush pools, floats, inflatable beds, dinghies, kayaks, and more. Instructions For use With the valve in the closed position, insert the American valve fitting and turn to lock in place. Remove the cap on the connector and connect the standard electric pump. Quantity: (1-pack) Boat inflation adapter, other products not included Size: as shown (for reference only) Color as shown Note, because there may be color and size difference between the light effect photo and the actual product, please allow 1-2 cm error,