Item Type: SUP Valve AdapterMaterial: Nylon and aluminum alloyColor: Black and redProduct Category: Surfboard accessoriesApplicable People: AdultsCircular Connector Size: Approx. 3.6cm or 1.4in, Nozzle Inner Diameter: Approx. 1.2cm or 0.5in(manual measurement, allowable error 1-2cm)Screw Connector Size: Approx. 4.6cm or 1.8in, Nozzle Inner Diameter: Approx. 1.7cm or 0.7in(manual measurement, allowable error 1-2cm)Tip Connector Size: Approx. 6.3cm or 2.5in, Nozzle Inner Diameter: Approx. 0.7cm or 0.3in(manual measurement, allowable error 1-2cm)Product Size: Approx. 10cm or 3.9in(the size of square connector installed on the valve adapter)(manual measurement, allowable error 1-2cm)Introduction of Gas Nozzle Function: The screw connector is suitable for assault boats, canoes, etc.The pointed connector is suitable for swimming ring, floating row, etc.The circular connector is suitable for inflatable beds and inflatable pools.The square connector is suitable for SUP paddle boards, etc.Suitable for Use: Paddle board, canoe, rubber boat, assault boat, inflatable pool, floating row, inflatable bed, etc.Assembly Required: Use with air pump and conventional bicycle air pump. .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center } 1This valve adapter come with simple operation, easy to carry and install 2Made of high-strength hard plastic and alloy, possess strong structure, labor-saving, strong sealing, and leak-proof 3Suitable for most paddle boards, canoes, rubber boats, assault boats, swimming rings, floating rowing boats, inflatable beds, rowing boats, etc. 4Surfboard accessories, can be used with air pumps, regular bicycle air pumps 5Air pump converter have stable structure, excellent performance and long service life