The car tire inflator adapter is made of high-quality zinc alloy and copper, which has good performance, stability and durability, 90 degree locking air chuck with 8mm standard tire valve fine thread.Can easily convert the inflator connection to a locked connection without having to clamp the tire on the stem. Ensuring that the air pressure inside the tire not leak and expand when the tire is in the tire, even if the tire valve is not opened and locked. Our air chuck adapter is equipped with a deflation valve, and the maximum endurance pressure is up to 200PSI. of the inflation clip locks the flow clip open, making it easier to inflate the tire. When you need to deflate, simply down on the protruding yellow part. The 8mm threaded end is designed to perfect for hose repairs and is compatible with 8mm bore hose, can quickly connect and disconnect the tire muzzle, ensuring that the air pressure inside the tire not leak and expand. Simply insert the locking air chuck into the hose and hook it onto the stem until it is clamped, then release the clamp. The external thread of the locking tire chuck is the same as that of the American tire nozzle,perfect for conveniently inflating tires with valve Colour:Copper Color & Silver Material:Metal Package Contents: 2 * Air Chuck