Item Type: Paddle Air Valve AdapterProduct Material: Nylon, (Intake Nozzle) Alloy, RubberApplication: Suitable for Paddle Boards, Canoes, Rubber Boats, Assault Boats, Inflatable Pools, Floating Rows, Inflatable Beds, etc.Need to Assemble: Use with Car Air Pump, Conventional Bicycle Air PumpProduct Size: Adapter Size: Approx. 3.5x7cm / 1.4x2.8inAir Nozzle Diameter: Approx. 2cm / 0.8inWeight: Approx. 78g / 2.8oz4 Air Mozzles:1. The circular joint is suitable for inflatable beds, inflatable pools,2. Square joint is suitable for paddle board, etc.3. The screw joint is suitable for assault boats, canoes, etc.4. The pointed joint is suitable for swimming ring, floating row, etc. 14 Air Nozzles: The circular joint is suitable for inflatable beds, inflatable pools. Square joint is suitable for paddle board, etc. The screw joint is suitable for assault boats, canoes, etc. The pointed joint is suitable for swimming ring, floating row, etc. 2Scope of Application: Widely applicable to paddle boards, canoes, rubber boats, assault boats, inflatable pools, floating rows, inflatable beds, etc. 3Need to assemble: Paddle board air valve adapter can use with car air pump, conventional bicycle air pump. Multi function valve connector can meet all your needs. 4Premium Material: Made of nylon, alloy and rubber material, with a solid structure, high pressure resistance, and strong sealing leakage protection. 5Compact Design: Lightweight and portable, easy to carry and store, no need to carry various types of inflatable tools, and reduce your burden.