1Brand New Tire Changer Arm Control Air Valve with Premium Quality. 2Made of high quality ABS and metal material for high durability. 3Inside hole diameter is 49mm, fits for diameter 48.5mm shaft. 4Pipe connector diameter is 8mm, connect 8mm hose. 5Professional manufacturing, perfect replace the old one. Features: Brand New Tire Changer Arm Control Air Valve with Premium Quality. Made of high quality ABS and metalmaterial for high durability. Inside hole diameter is 49mm, fits for diameter 48.5mm shaft. Pipe connector diameter is 8mm, connect 8mm hose. Professional manufacturing, perfect replace the old one. The product has been tested strictly and advanced, durable in use. Original standard, perfectly match to the original car.Specification: Condition: 100% Brand New Material: ABS, Metal Color: White Inside Hole Diameter: 49mm/1.9in Total Height: 45mm/1.8in Tracheal Joint: 8mm/0.3in To the U-shaped Height: 34mm/1.3in Size: Shown as Picture Package Weight: approx.217g/7.7oz Package list: 1 * Rotary Air Valve