Good leak-proof performance: the inflatable adapter has good sealing performance and good leak-proof performance. Boat Valve Fill and Drain Adapter for Easy Replacement and Quick Inflation Saving Effort: This air pump adapter is made of high-quality materials, with strong structure and easy to save labor. Fits most inflatable boats, river rafts and kayaks Exquisite Design: These surfboard adapter heads are carefully crafted and designed for ease of use. Available in 2 colors. USEFUL TOOL: The paddle board adapter head is a useful tool to properly inflate and inflate your boat. You don't need to buy inflatable accessories for your canoe. Lightweight and easy to carry: The air pump inflation adapter is light in weight and suitable for outdoor sports. Easy to use and carry.