4 in 1 Design: 1 rowing boat air valve adapter + 4 conventional air valve fittings. 4 conventional air valve fittings to meet the inflation requirements of most equipment. With it, you don't need to buy other connectors. High-Quality Material: Made of hard plastic and alloy, it has a solid structure, high pressure resistance, strong sealing, anti-leakage, the alloy valve end provides leak protection and durable use. Wide Application: The boat air valve adapter kit is suitable for most paddle boards, canoes, kayaks, assault boats, motorboats, swimming pools, floating platforms, inflatable beds, etc. Easy Conversion and Fast Inflation: Easy to inflate and deflate. The operation is very simple, first choose the appropriate connector according to the inflation interface. Then use a compressor or tire pump to easily reach the recommended PSI in 5-10 minutes. The larger the inflation pump you use, the faster the inflation. Convenient: Lightweight and portable, easy to carry and store. You don't need to carry different types of inflatable tools. Reduce your burden. Product Description Features: CONVENIENT: This air valve adapter makes the inflator compatible with your inflatable boat or board. With soft rubber, it has good airtightness. The valve adapter can be connected directly to a normal cylinder without the need for a dedicated air pump. The SUP pump adapter uses a standard Schrader fitting to pair with an air compressor or bicycle/tire pump. With the valve in the closed position, insert the valve fitting and twist to lock. Specifications: Material: Nylon and alloy. Weight: 76g. Color: Black and red. Size: Please refer to the detailed picture. Package includes: 1 x Rowing boat air valve adapter 4 air valves.