This Channellock 17-piece extra-long metric combination wrench set features chrome vanadium steel construction with a fully polished finish for a professional appearance. The blue color band denotes metric measurement for easy identification. The included canvas carry pouch makes organization simple. These wrenches have a lifetime warranty. Includes (1 of each): 6mm， 8mm， 9mm， 10mm， 11mm， 13mm， 15mm， 16mm， 17mm， 19mm， 21mm， 22mm， 24mm， 26mm， 27mm， 30mm， and 32mm.