The MTC-10 is a high quality folding take-along bike tool that features all the essential tools needed for a quick on-the-ride adjustment. The MTC-10 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. Built with a super strong composite multi-position handle and hardened and plated tools to withstand years of use. With its compact lightweight size, the MTC-10 is the perfect size for a jersey pocket or saddle bag.Features?3, 4, 5 and 8 mm hex wrenchesT25 Torx-compatible driverCombo cross/straight tip screwdriverKey ring holderDimensions: 60 x 25 x 20 (2.3" x1" x 0.8")Weight: 60 grams (2.12 oz.)About Park ToolPark Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.