型号丛16mm.18mm.20mm.22mm.25mm.30mm.32mm.35mm.38mm.40mm.45mm.50mm.53mm.55mm.60mm.65mm.70mm.75mm.80mm.85mm.90mm.95mm.100mm.105mm.110mm.115mm.120mm.125mm.130mm.135mm.140mm.145mm.150mm.155mm.160mm.165mm.170mm.175mm.180mm.185mm.190mm.195mm至200mm都有。所有型号都是0.12元一个点。