The Crank Brothers TT17 Twin Tube Tool Kit presents a dual tube system designed to attach seamlessly to your accessory mounts. With two spring-loaded tubes, one side houses the SOS Multi-Tool and Chain Breaker, while the other side accommodates spare links, zip ties, or a 20g CO2 cartridge snugly. Additionally, a discreet tire lever is tucked inside, providing a backup solution in case of emergencies. Despite its compact design, this kit offers essential tools without unnecessary bulk, ensuring a clean and unobtrusive appearance on your bike. Its slim profile makes it barely noticeable, blending in effortlessly with other mounted accessories.Allen Keys: 2, 2.5, 3, 4, 5, 6, 8mm hexT25 torx toolFlat screwdriverTire plug tool + 2x plugsTire leverChain toolSpoke wrenches 0, 1, 2Valve core toolCO2 headStorage tube247gFits a spare chain link + 16/20g CO2,sold separatelyItem SpecificationsChain ToolNoNumber of Tools 17StyleFolding Crank Brothers S.O.S. TT17 Twin Tube Tool Kit Bike Multi-Tool UPC: 641300167743