Adjustable wrench with plastic handle 1)45# carbon steel 2)hardness 38~43HRC 3)supply ... ability:50,000 piece/pieces per day Adjustable Wrench With Plastic Handle1.About product:size:6", 8", 10", 12", 15", 18 ... " (300mm)15" (375mm)18" (450mm)24" (600mm) Adjustable Wrench With Plastic Handle