Daysaver Coworking5 Multi-Tool Extension Workshop Quality Without Compromise Tools are always a great thing to have on hand when you're riding. You never know when you might need to make an adjustment or have to change a flat. The Daysaver Coworking5 Multi-Tool Extension has a small but handy size that ensures that it is convenient to use and portable. This is designed to enhance your Essential8 or Original9 multi-tool to add a chain breaker, tire lever, spoke wrench, valve core tool, and chain links holder. The chain breaker is made of highly corrosion-resistant and hardened stainless steel and can be used with any Torx 25 key. The chain breaker can break 9 to 12-speed chains as well as Campagnolo EKAR 13-speed. The tire lever serves as the chain breaker handle and is made from glass fiber-reinforced polyamide. All these tools are held together by magnets and are easy to take apart and put back together. Features Mount the Coworking5 together with the Essential8 or Original9 tools Functions: chain breaker, tire lever, spoke wrench, valve core tool, chain links holder The chain breaker is made of highly corrosion-resistant and hardened stainless steel | Daysaver | Coworking5 Multi-Tool Extension Chain Tool/tire Lever