5-in-1 Design: 1 rowing boat air valve adapter + 4 conventional air valve attachments. 4 conventional air valve connectors to meet the inflation needs of most equipment, eliminating the need to purchase other connectors. High Quality Material: Made of hard plastic and alloy, it has solid structure, high pressure resistance, strong sealing, leak-proof, alloy valve end provides leak protection and durable use. Wide Application: The boat air valve adapter set is suitable for most paddle boards, canoes, kayaks, assault boats, motor boats, swimming pools, swim boards, inflatable beds, etc. Easy Conversion and Fast Inflation: Easy to inflate and deflate. The operation is very simple: first select the appropriate connector according to the inflation interface, then use a compressor or tire pump to easily reach the recommended pressure in 5-10 minutes. The larger the inflation pump, the faster the inflation will be. Convenient: lightweight and portable, easy to carry and store. No need to