Universal Pump Compatibility: This air pump adapter features a standard valve fitting that securely connects with bike pumps, compressors, and electric inflators, enabling easy inflation of inflatable boats, SUP paddle boards, and other inflatables requiring precise air pressure control Secure Twist-Lock Design: Equipped with a twist-to-lock mechanism, this air valve adapter ensures an airtight and stable connection during inflation to prevent air leaks, improving efficiency when inflating paddle boards and inflatable boats with pump inflators Compact and Lightweight for Portability: Measuring 1.33 x 1.33 x 3.07 inches and weighing just 1.59 ounces, this pump adapter is highly portable and easy to store, making it a convenient accessory for outdoor water sports enthusiasts Versatile Inflation Process: Designed to be used in combination with manual hand pumping and electric or bike pumps, this adapter allows users to start by hand inflating until resistance is felt, then switch to powered pumps for efficient and controlled inflation of SUP paddle boards and inflatable boats Durable Build for Outdoor Use: Crafted for typical outdoor conditions encountered in water sports, this air pump adapter maintains reliable performance and helps users achieve recommended PSI levels on paddle boards and inflatable boats with ease The coolhiya inflatable boat sup pump adaptor features a standard schrader fitting designed to connect easily with air compressors, bike pumps, or tire pumps.Measuring 1.33 x 1.33 x 3.07 inches and weighing 1.59 ounces, this air pump adapter offers a compact and lightweight solution for inflating your sup or inflatable boat efficiently.To use, insert the schrader fitting and rotate to lock it securely in place.Remove the cap on the fitting, then attach a compatible electric pump or bike pump to inflate your board to the recommended psi.For best results, start inflating your board manually until it becomes difficult to pump, then use this adaptor to complete the inflation process with your air compressor or tire pump.This pump adapter is ideal for outdoor water sports, beach trips, and recreational boating, providing a reliable connection that helps maintain proper board pressure.Please note that due to lighting and monitor settings, actual color and size may slightly vary from the product image.Package includes one air pump adapter.