Features: 1. 22mm diameter, suitable for brand inflatable items. 2. Applicable for inflatable boats, air bed, fishing boat, canoe, rubber dinghy, etc. 3. One-way inflation valve, easy for installation and quick inflated. 4. Designed with a cap and screw thread for anti- inflation. 5. Made of quality material, having good performance and long serve life. Specification: Condition:100% Brand New Material: Plastic Color: Black Diameter: 22mm/0.92in Package List:1PC * Air Valve Notice:Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.