Features: *Leak-proof Performance:Made of plastic materials, this adapter features strong sealing and airtightness, ensuring excellent air leakage performance. It is highly and can withstand high pressure. *Lightweight and Compact:With its lightweight and portable design, this adapter is easy to carry and store. This multifunctional valve adapter can meet all your needs while reducing your load. *Wide Applications:Suitable for various water sports equipment such as surfboards, kayaks, canoes, and inflatable boats, as well as inflatable beds, this adapter offers wide compatibility and versatility. *Easy to Inflate:This adapter simplifies the inflation and deflation process for your boat. Equipped with an internal gasket, it ensures a tight seal and eliminates air leakage between the adapters. *Quick ion:Designed for quick and efficient air pump valve adapter ion, this adapter enables a seamless ion between the hand pump valve adapter and other valve adapters. Specifications: *Product Name:Inflatable Boat Pump Adapter *Material:Plastic *Size:Approx. 0.6cm,0.9cm,1.7cm,2cm,2.1cm,3.1cm(Diameter) *Color:Black Package Content: 6 * Adapters Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.