21-in-1 bicycle multitool with a complete set of common bike fasteners - Tools included: Allen keys 1/2/3/4/5/6/8 mm; Phillips PH1/PH2; slotted screwdriver; Torx bits T10/T15/T20/T25/T27/T30; 6 mm hex socket; wrenches 8/10/15 mm; spoke wrench. - Durable construction: CNC machined from chrome vanadium steel for lasting strength and precise fit with screw openings for solid grip. - Compact and portable: folded size is 9 cm long, 4.5 cm wide, 2.5 cm high; fits easily in a saddle bag or backpack with minimal bulk. - Wide compatibility: suitable for bicycles, mountain bikes, e-bikes and escooters; covers most daily maintenance and repair tasks. - Practical use scenarios: - On the road: tighten loose bolts, adjust brakes or derailleur, secure saddle clamp during a ride. - At home: quick tune-ups, component reinforcement, routine maintenance. - On trails or commutes: emergency wheel spoke adjustments, handlebar/stem bolt checks, and small accessory repairs.