Chrome Vanadium steel obstruction spanners with 12-point WallDrive® rings. Heat treated and fully polished with mirror finish. Supplied in storage/carry rack. Features & Benefits:Chrome Vanadium steel obstruction spanners with bi-hex rings.Heat treated and fully polished with mirror finish.Sizes: 8 x 10, 11 x 13, 14 x 15, 17 x 19, 21 x 22mm.Double Ended 12-Point WallDrive® rings. Supplied in storage/carry rack.Lifetime guarantee*.Model No. S0716 Specifications: Model No S0716 Brand: Siegen Contents: 8 x 10, 11 x 13, 14 x 15, 17 x 19, 21 x 22mm Maximum Length: 220mm Minimum Length: 125mm Nett Weight: 0.65kg