White Lightning 6-in-1 mechanic quality bike tool with 3 reversible bits gives you 6 core tools to perform any adjusting your bike needs. This lightweight, shop-quality 6-in-1 bike tool with its ergonomic shaped design that fits in your palm provides strong leverage and superior control. The 6 core tools included are 2 mm, 4 mm, 5 mm, and 6 mm Hex, Torn 25, and Philips no.2 screwdriver. The 6-in-1 Tool can be used to service: Clamps and brackets for seat posts, saddle, handlebars, pump, lock, carrier rack, computer, brakes, derailleurs, lights, reflectors, water bottle cage, fenders, mounting bolts for chainrings, cable guides, and more.