Bullet points: 1Leak proof performance: Made of high quality plastic materials, the adapter has high pressure resistance. It is durable with strong sealing and leak-proof performance, excellent air leakage performance. 2Light and portable: Lightweight and portable, the adapter is easy to carry and store, no need to carry different types of inflation tools. The multi-function valve adapter can meet all your needs and reduce your burden. 3Wide application: The adapter is suitable for all kinds of surfboards, canoes, kayaks, inflatable boats, inflatable beds. 4Easy to inflate: The adapter makes it easy to inflate and deflate boats. With gasket inside, there will be no air leakage between the adapters. 5Quick connection: The adapter makes a quick connection between hand pump valve adapter and other valve adapters. 1.Leak proof performance: Made of high quality plastic materials, the adapter has high pressure resistance. It is durable with strong sealing and leak-proof performance, excellent air leakage performance. 2. Light and portable: Lightweight and portable, the adapter is easy to carry and store, you don't need to carry different kinds of inflation tools. The multi-function valve adapter can meet all your needs and reduce your burden. 3. Wide application: The adapter is suitable for all kinds of surfboards, canoes, kayaks, inflatable boats, inflatable beds. 4. Easy to inflate: The adapter makes it easy to inflate and deflate boats. With a gasket inside, there will be no air leakage between the adapters. 5. Quick connection: The adapter makes a quick connection between the hand pump valve adapter and other valve adapters.Specification: Diameter: approx. 3 cm/1.18 inch Material: PA6 fiberglass Suitable for: paddle board, canoe, inflatable boat, attack boat, inflatable pool, floating row, inflatable bed, etc. Packing list: 1*Air valve adapter 4*Air nozzle