Specification: Material: Hose: Interior - Rubber; Exterior - nylon; Both Ends - Metal, Copper; Lever Connector: Brass; Color: As the picture shows. Size: Tube: 30cm / 11.8inch Feature It can quickly connect and disconnect the muzzle of the tire, which ensures that the air pressure in the tire does not escape when the tire is inflated and disconnected. Good adapter from the thread to the removable tire valve connection. Very useful adapter for the air pump with screw connection; allows tire air loss-free connection. Quick-release nozzle can quickly connect and disconnect the nozzle from the tire so that tire pressure does not leak. Ideal tool accessories For daily car repairs, car dealerships, tire shops, 4S shops. For inflating tires of various bicycles, motorcycles, cars, buses, trucks, wheelchairs. Instructions for the hose: 1. Connect the male thread to the outlet nozzle of the air pump. 2. Connect the quick release chuck to the tire mouth. Lever connector instructions: Connect