1. Material The air pump adapter is made of high quality plastic, durable and high pressure resistant, strong sealing and leak proof. Alloy shaft ends provide strong seal leakage protection and durable use. 2. EASY INFLATION The adapter makes it easy to inflate and deflate the boat and can be quickly inflated. Due to the internal seal, there are no air leaks between the adapters. This inflatable top valve adapter is easy to convert and can be inflated very efficiently. 3. Easy to use: insert the adapter of the SUP inflation valve and turn it to lock it when the valve is closed. Remove the cap from the plug and connect a standard electric pump. 4. Airtightness The adapter has an integrated seal inside, and there is no air leakage between the adapters. The tightness and leakage protection are strong, which can make inflation more convenient.