1.Material:High quality Cr-V 2.With excellent hardness,nice finish 3.With cold harmering ended 4.extra long socket T-type Socket Wrench with extra long socketItem:TC-048High quality Cr-v, Cold hammeringExcellent heat treatment,high hardness,high flexibilityMirror Finish,Satin FinishSize:7,8,9,10,11,12,13,14,15,16,17,18,19mm T-type Socket Wrench with extra long socket