The mini bike pump can inflate bicycle tires to a pressure of 80 to 100 PSI, making it ideal for everyday tire inflation or riding with light luggage. The pump features a concealed flexible hose that can be extended or hidden by the locking mechanism around the nozzle, allowing you to adjust the hose length as needed for easier pumping. Dual Valve Design: The mini bike pump is equipped with a valve compatible with both Presta and Schrader valves, enabling you to inflate tires without needing to change adapters. The pump's robust locking mechanism prevents loosening during inflation: Lift the lever to lock the air nozzle (at this point, you can inflate the tire), then release the lever to open the nozzle for easy inflation. Portable Bike Pump • Length * width: 19.5 x 3 cm, weight 90 grams. This mini bike pump is small, easy to carry, and takes up little space. • The mini air pump comes with a bracket that can be mounted on a bike frame or stored with the bike in a top tube bag or rear pannier for easy transport. Widely Applicable • Ideal for road bikes, mountain bikes, cyclocross bikes, hybrid bikes, and strollers. This mini bike pump can inflate not only bikes but also balls such as basketballs, soccer balls, volleyballs, swimming rings, and inflatable pools. • This small bike pump is an indispensable multifunctional tool for the road. Great Idea for Kids • This affordable mini bike pump combines compact portability with fast and efficient pumping and is suitable not only for adults but also for children, who will be delighted with this fun cycling companion.