This mini bike pump is made of aluminum alloy, lightweight and durable, great accessory for your bike. Features: Aluminum alloy construction for long lasting durability. Compatible with Presta and Schrader valves, no valve head changes required. Release lever regulates CO2 output speed for controlled inflation. > Suitable for 16g CO2 cartridges (not included). Small size and light weight make it easy to store in your bike bag or jersey pocket. Comes with a holder for the mounting on the bicycle frame. Suitable for inflating bicycle tires, electric bicycle tires and various inflatable balls. Features: Material: Aluminum alloy Size: 11.2 * 2.5 cm / 4.4 * 1 in Weight: approx. 79g / 2.8oz Package List: 1 * Air Pump 1 * Holder 1 * Needle 2 * Bolt