Features: The air pump extension hose is an extension of the tire for 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 cars, bicycles and motorcycles. Quickly press the handle to connect the tire mouth without air leakage. Easy to operate. It is suitable for the connection of the charging nozzle of the battery charging treasure integrated machine. Specifications: Material:Copper + Rubber Tube Size:Approx.16cm/6.29inches Size:Approx.20cm/7.87inches Size:Approx.25cm/9.84inches Size:Approx.30cm/11.81inches Size:Approx.40cm/15.74inches Size:Approx.50cm/19.68inches Size:Approx.60cm/23.62inches Size:Approx.80cm/31.49inches Size:Approx.100cm/39.37inches Size:Approx.150cm/59.05inches Size:Approx.200cm/78.74inches Color:Black Package Includes: 1x Extension Tube note: 1.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.