6-22mm6x7mm,8x9mm,10x11mm，12x13mm,14x15mm,16x17mm,18x19mm，20x22mm  Fine polishedMade from premium Chrome Vanadium steel, drop-forged, hardness reaches HRC 48. Mirror finishing in high-polish chrome, anti-corrosion.Set of eight offset double-ended ring spanners (also called wrenches) for use with hexagonal metric nuts and bolt heads.Offset ring-type spanner provides improved access to recessed and hard-to-reach areas.EASY TO USE – 12-Point box end doubles the access angle than a 6-point, and 15-degree offset creates clearance for hand or obstructions in tight work spaces.STAY ORGANIZED – Comes with a compact store-and-go organizing rack for versatile storage solutions with space-saving folding handle and non-slip grippers that lock the wrenches during move.LONG PATTERN DESIGN – Longer wrench body than other brands provides better leverage performance and makes your job easier to loosen stubborn or rusted bolts and nuts.