High-quality materials: This SUP pump adapter is made of high-quality copper and rubber, strong sealing, anti-leakage. The alloy valve end provides strong leakage protection and durable use. Fast inflationThis inflatable SUP valve adapter is easy to convert and the inflation efficiency is quite high. Use your compressor or tire pump to reach the recommended PSI in 5-10 minutes. Lightweight and portable: This SUP pump accessory is light in weight, small in size, easy to carry and store. You don't need to carry different types of inflatable tools. Reduce your load. Multifunctional air valve adapter: round joint - suitable for inflatable bed, inflatable swimming pool, square connection - suitable for paddle board, screw connection - suitable for attack boats, canoes, pointed connectors - suitable for floating buoys. Scope of application: Widely used in most paddle boards, canoes, inflatable boats, storm boats, swimming buoys, platoons, inflatable beds, dinghies, kayaks, etc.