Features: Screw adapter end onto original inflator hoses, press to clamps adapter head onto tire valves, start the inflator for a quickly and none leaking inflation. Another function, can ventair for the tire. Usings Step: Tire chuck keepings the chuck attached to the valves stem during inflation. No additional tool is required, but cannot be connect to tire directly, it is only used for inflator hoses converting. Open flows thumb press tire chuck, easy and quick hands free inflation. Antiskid design: wilting knurling design, better antislip, screw up and not slip. Various uses: a variety of different specifications of valves, suitable for a variety of purposes, bicycles, basketball, inflatable toy. Specifications: Material:Metal Thread:1/4NPT Package Includes: 1x Air Chuck note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.