- Foot-activated design with pressure gauge: non-slip retractable pedals, fixed plastic base, and a max 11 bar pressure gauge to prevent accidental tyre blowouts. Foot-activated inflation is more labour-saving, robust, faster and more time-saving. - Double valve head with thumb lock: compatible with Presta and Schrader valves. Smooth surface, good sealing and pumping performance. No adapters or settings required. The thumb lock ensures a tight seal and no air leaks. - Portable and lightweight: weighs 400 g, only slightly heavier than two iPhone 8 Plus and 6.7 inches high. Easy to put into a backpack and can be pumped anywhere after shrinking. - Durable and sturdy: high-strength inner and outer barrel made of aluminium alloy with a smooth surface. No paint removal, no rust, and improved wear resistance. The rubber hose is removable, frost-proof and high temperature resistant. Durable quality for longer use and money savings. Use scenarios - On-road cycling and daily commuting: carry in a backpack to quickly inflate tires to the correct pressure with the built-in gauge, avoiding under- or over-inflation. - Bike tours and training rides: reliable maintenance tool for Presta and Schrader valves during trips, enabling fast top-ups without adapters. - Travel, camping and general bike care: compact to pack, ready for use anywhere to maintain tire performance and reduce downtime.