STANDARD AIR VALVE ADAPTOR - Made of high-quality copper and reinforced nylon, sturdy and durable, meet the standard air pump adaptor which connects with an air compressor or bike/tire pump directly. QUICK INFLATION - Use your compressor or tire pump to easily reach the suggested PSI (Tips: We suggest that you can inflate the board to about 3 or 4 PSI with a hand pump) within 5-10mins. it's very quickly inflated and easy to convert. EASY TO USE - When the valve is in the closed position, insert the valve fitting and rotate it to lock in place, remove the cap on the fitting, and connect a standard air pump. Easy to use, even novices can quickly complete inflation. CONVENIENT TO CARRY - Size:8*3.5CM/3.15*1.38Inch,40g/pcs; Included 2Pieces of Air Valve Adaptor for one package. lightweight and portable, easy to carry. you can even put it in your pocket when you go out. WIDE APPLICATION - Universal air valve adapter is an essential tool for water sports, suitable for most high-pressure air valve Inflatable equipment, such as Stand Up Paddleboard, Rubber Boats, Dinghy, Inflatable Pools, and Beds. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!