Alien Technology allows tool to separate into two pieces for more versatility when making repairs.26-Tool system separates with the press of a buttonChain tool is compatible with single- and multi-speed chains, including 10-speed hollow pin (Not 11-speed compatible)Includes a nylon carrying caseMaterial Construction: Engineering grade plastic frame with hardened steel toolsDimensions: 3.4 x 1.7 x 1.6"Weight: 290gIncludes: - 2, 2.5, 3, 4, 5, 6mm Hex keys - 8, 9, 10mm wrenches - Phillips & flat-head screwdrivers - Chain tool - Spoke wrenches - Stainless steel knife - 2 Tire levers - T25 Torx bit - 8mm open wrench for disc brakes - Bottle openerItem SpecificationsIncludes - 2, 2.5, 3, 4, 5, 6, 8, and 10mm Allen Wrenches - 8, 9, and 10mm Box Wrenches - 2 Chain Pin Compartments - Phillips and Flat-head Screwdrivers - Chain Tool - 15g and 14g Spoke Wrenches - Knife - 2 Tire Levers - T25 Torx - Mini Pedal Wrench - Bottle Opener