Always there to help you perform any mid-ride repair or adjustment comes the Composite Multi-Tool from Park Tool. Featuring a super strong composite handle that allows for multiple positions and hardened and plated tools, you'll experience smooth operation with this lightweight and compact multi-tool, perfect to take on every ride. MTC-10: 3, 4, 5 and 8mm hex wrenches, T25 Torx compatible driver, combo cross/straight tip screwdriver, key ring holder MTC-20: 3, 4, 5 and 8mm hex wrenches, T25 Torx compatible driver, combo cross/straight tip screwdriver, CO2 cartridge inflator adaptor, key ring holder MTC-25: 3, 4, 5, 6 and 8mm hex wrenches, T25 & T30 Torx compatible driver, combo cross/straight tip screwdriver, key ring holder MTC-30: 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 MTC-40: 2. 5, 3, 4, 5, 6 and 8mm hex wrenches, T25 & T30 Torx compatible driver, combo cross/straight tip screwdriver, 5- to 12-speed compatible chain tool, rotor straightener, CO2 cartridge inflator adaptor, bottle opener, key ring holder