Features: The air pump extension hose is-an extension of the tire valve, making the tire inflation process easier. The air pump extension tube can quickly connect and disconnect the tire nozzle, thus ensuring that the air pressure in the tire will not leak when the tire is-inflated and disconnected. The inflatable chuck has high flexibility, it can be easily bent, and the threaded interface design is-adopted, so there is-no need to worry about it being easily loose or leaking. The air pump extension tube is-made of durable materials, resistant to wear and deformation, and the hose is-not easy to break. The main application scope of the pneumatic chuck: tire inflation of for car, bicycles and motorcycles. Specifications: Material:Metal Size: Approx.10cm/3.93inch Size: Approx.20cm/7.87inch Size: Approx.30cm/11.81inch Size: Approx.40cm/15.74inch Size: Approx.60cm/23.62inch Color:Black Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Air Pump Extension Tube