Premium Tire Inflator Hose Adapter, designed for tire inflator hose converting, easily convert tire inflator's twist-on connection to lock-on connection. Screw adapter end onto original inflator hose, press to clamp adapter head onto tire valve, start the inflator for a quickly and none leaking inflation. All metal construction air chuck, portable tire inflator chuck adapter, for bike, motorcycle, car air fill. Excellent tight seal lock-on air chuck, make sure no annoying air leaking. Standard us fine thread connection (5/16x32TPI), the same as the thread on all USA standard car valve stems, compatible with inner thread of twist-on air chuck All metal construction, portable tire inflator chuck adapter, designed with standard US fine thread ideal for bike, motorcycle, car tire air fill. Specifications: Connection thread: 0.305"x32TPI (5/16"x32TPI) Hose length: 20cm/30cm/40cm/60cm (7.87in/11.81in//15.74in/23.6in) Connection type: Self-locking Material: all metal air chuck+rubber hose+brass connection fitting Note: Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Please allow 1-3mm slight deviation due to manual measurement. Thank you! Package include: 1 x Locking Air Chuck with Air Hose and Standard Tire Valve Fine Thread