Manufactured from heat treated hardened tool steel Chrome plated for a durable long lasting finish Color coded non-slip coated handles for easy use and recognition Comes with 3 hex wrench sizes, 8, 9, or 10 mm and 3 interchangeable adjustment heads (3 and 4 mm square, plus straight blade) Means you have 9 different combinations available to cover most bikes Comes as complete set Manufacturer's lifetime warranty