1.material:brass head brass key 2.packing :blister packing 3.20x1000 ... motorcycle lock ,security lock) Mod.:SL227 with big iron head inside ,zinc alloy cylinder ,copper key,round moving dust ... capMod.:SL228 big head inside,up-down dust cap,others same with SL227color ... Size (mm)Made by orderMeasurements Packing ways(SL-B01)Head card, (SL-B02)bound card, (SL-B04)round ...