Tire inflation extension tube: It can quickly connect and disconnect the tire nozzle to ensure that the air pressure in the tire does not leak when the tire is inflated and disconnected.Wide range of applications: The universal type is suitable for all car air pumps;Easy to install and use: Connect the male threaded interface to the air pump and quickly press the handle of the inflation chuck to start inflation.Valve extension hose material: Reinforced rubber hose with nylon cover, which is strong and durable and can withstand pressure up to 300 psi.Universal male thread interface: The American 5/1630 thread specification is the same as the American tire valve, 8V1 valve, outer diameter 7.8 mm.