Features: new and The air pump extension tube is made of rubber and copper materials, resistant to wear and deformation, and the hose is not easy to break. The air pump extension hose is an extension of the tire connector, 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. Because some bicycles air tap has insufficient space and height, other pumps canfor t be stuffed or inflated, and the external hose can easily solve the inflation problem. Specifications: Material:Rubber,Copper Length:Approx.16cm/6.30in,20cm/7.87in,25cm/9.84in,30cm/11.81in,50cm/19.69in,60cm/23.62in,80cm/31.50in(optional) Net Weight:30-80g Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Tire Air Inflator Hose