Please Note Thread Size Before You Buy This, this hose end thread is standard us fine thread connection(0.305"x32TPI), the same as the thread on standard car valve stems. Not NPT1/4" thread. Not 5/16" thread. Not 1/8" thread. Not M8 thread. Not coarse thread. Solid construction tire inflator accessory, portable tire inflator chuck adapter, for bike, motorcycle, car air fill. Please note this is only an inflator hose adapter, was designed to convert screw-on (twist-on) air chuck to lock-on air chuck, not for connecting to tire inflator/pump directly, please refer to the left product image. Open flow 90 degree thumb-press air chuck, easy and quick hands-free inflation. Excellent tight seal lock-on tire chuck, make sure no annoying air leaking. Lengthened Rubber Hose to 20 inch tire inflator/pump hose adapter with high quality strengthen nylon-wrapped rubber hose, durable and flexible. Buy with confidence, 100% satisfaction customer service. Use under 200psi, heavy truck/vehicle forbidden. This tire filling adapter was designed for converting tire inflator's twist-on/screw-on air chuck to lock-on air chuck, not for connecting to tire inflator directly Specs: Tire Chuck: Schrader Valve tire chuck. Connector: Schrader Valve fine Thread(0.305"outer diameterx32TPI). Hose length: 20 Inch nylon-wrapped Rubber Hose. Features: Solid construction, portable tire inflator tire filling chuck, for bike, motorcycle, car etc. Open flow 90 degree thumb-up air chuck, for easy and quick hands free inflation. Excellent tight seal lock-on air chuck, make sure no annoying air leaking. High quality strengthen nylon-wrapped rubber hose, durable and flexible. Standard US Schrader Valve fine thread connection, compatible with inner thread of twist-on air chuck. Use under 200psi, heavy truck/vehicle forbidden. Buy with confidence, 100% satisfaction customer service. This tire filling adapter was designed for converting tire inflator's twist-on/screw-on air chuck to lock-on air chuck, not for connecting to tire inflator directly Specs: Tire Chuck: Schrader Valve tire chuck. Connector: Schrader Valve fine Thread(0.305"outer diameterx32TPI). Hose length: 20 Inch nylon-wrapped Rubber Hose. Features: Solid construction, portable tire inflator tire filling chuck, for bike, motorcycle, car etc. Open flow 90 degree thumb-up air chuck, for easy and quick hands free inflation. Excellent tight seal lock-on air chuck, make sure no annoying air leaking. High quality strengthen nylon-wrapped rubber hose, durable and flexible. Standard US Schrader Valve fine thread connection, compatible with inner thread of twist-on air chuck. Use under 200psi, heavy truck/vehicle forbidden. Buy with confidence, 100% satisfaction customer service.