Foot Activated Design: Anti-slip retractable pedals and cast -iron base makes this bike pump more stable and less slippery when inflating. Vertical pump design makes you effortless and quickly pumping, hand free. High pressure, up to 110-120psi, fast inflating and saving time. Multifunctional Valves: Newly designed dual valve head includes presta and schrader valve, the tire pump can inflate for bicycles, electric vehicles, motorcycles, sports balls and swimming rings. For Presta valves with removable cores, extra care should be taken to tightly screw the core into the valve stem. Portable and Lightweight: Light in weight. After shrinking, it will be more compact and can be freely placed in your bag. -Durable and Stable: The rubber tube of the portable air pump is dismountable, frost-proof and high temperature resistance. Inner and outer tubes are made of high-strength aluminum alloy, which is more wear-resistant and has a smooth surface.