FAST AND EFFICIENT: This extension tube can help the chuck to quickly connect and disconnect the tire nozzle to ensure that the air pressure in the tire will not lea-k when the tire is inflated and disconnected. Conducive to maintaining proper tire pressure, making driving more stable and safer. DURABLE MATERIAL: In the middle of the inflator hose is an inflatable tube made of high-pressure resistant woven cloth, with a pressure resistance of up to 300PSI. There is brass portable tire inflator chuck adapters, which are not easy to rust and wear, and are durable. CHUCK CLAMP: One end of the hose is connected with an open 90-degree thumb press air chuck, which can be easily and quickly inflated with hands-free. Quick-connect chuck, strong structure, beautiful and shiny, stable performance, can be used for a long time. EXCELLENT PERFORMANCE: Standard American fine thread connection (5/16 inch x 32TPI), which is the same as the threads on all American stan-dard automobile valve stems, and is compatible with the internal threads of screw-down air chucks. Convert the tightening air chuck of the tire inflator to the locking air chuck. EASY TO OPERATE: The sealed air sucker ensures that there is no annoying air leakage, and the high-quality reinforced inflator hose adapter is strong and durable. It has a wide range of applications and can be used to inflate car/motorcycle/bicycle that use American tire valves.