The Park Tool MT-30 is a high quality folding take-along bike tool that features all the essential tools needed for a quick on-the-ride adjustment. The MT-30 features a selection of hex and star driver wrenches for most bolts and fittings found on a bicycle, as well as a universal screwdriver for derailleur adjustment. Unique to the MT-30 is a 8mm/15mm box end wrench: the 15mm end fits most solid axle nuts, and the 8mm end is handy for derailleur pinch bolts, brake components, pedal studs, racks, accessories, and more. Built with forged aluminum side plates and hardened and plated tools to withstand years of use. With its compact (2.8"x1"x0.8"), lightweight (153g) size, the MT-30 is the perfect size for a saddle bag or backpack. Includes: 2.5, 3, 4, 5, 6 and 8mm hex wrenches T25 & T30 Torx-compatible drivers Combo cross/straight tip screwdriver 8 & 15mm box wrenches Key ring holder Dimensions: 72mm x 42mm x 22mm (2.8"x1.6"x0.9") Weight: 153 grams (5.4 ounces)