30 function multi-tool packed into a custom protective case that mounts to any round tube or seatpost (ø25 mm - ø33 mm) with a secure quick release strap. The chain tool is compatible with single and multi-speed chains up to 12 speed, NOT including Campagnolo® 11 speed hollow pin chains. SOCKET HEX: 8 mm OPEN WRENCHES: 8 / 10 mm Two engineering grade polymer levers Glueless patch ALLEN WRENCHES: 1.5 / 2 / 2.5 / 3 / 4 / 5 / 6 mm TORX® WRENCHES: T15 / T25 SPOKE WRENCHES: 14G / 15G / Mavic® M7 / Shimano® compatible SCREW DRIVER: #2 Phillips Secondary chain link fence, Chain pin breaker Air release button, Sand paper, Mini hammer 2 Chain pins & 2 links compartment Self-tightening tool CHAIN HOOK: Stainless steel wire DISC BRAKE SPACER: Engineering grade polymer TOOL MATERIAL: Chrome vanadium steel CHAIN TOOL: CrMo steel Colour: BlackColour: SilverMade in: Taiwan