1.Material:A3 2.Teeth:39/40/42/43/44/46/47/48/49/50/51/52/53/56/57 3:Key Specifications/Special Features: -Stable performance -Sprocket for motorcycle chain420/428 -Your specifications accepted 4.Usual packaging details: -QTY:250pieces -G.W.: 24.0kg/ctn -N.W.:22.5kg/ctn -Ctn:24x25x19cm 5.Main Export Markets: -Asia -Western Europe