1.Two Size Per Wrench: 9mm, 11mm.2.Drop Forged Cr-V Construction: Made of heat treated chrome vanadium steel for strength and durability.3.Polished Finish: Mirror polished finish to resist corrosion.4.12-point Box End: The 12-point fits onto the fastening at twice as many angles, an advantage where swing is limited. 5.Widely Use: Offset box end makes it easy grip the fastener where it is hard to reach.Specification:Product Name: Box End WrenchPackage Content: 1Pcs x Box End WrenchMaterial: Chrome Vanadium SteelFinish: PolishedColor: Silver ToneWeight: 82gBox End Size: 9mm, 11mmTotal Size: 168 x 19mm / 6.61-inch x 0.75-inch (L*W)