1High class, high quality 2Material: Brass, Aluminium, Iron, Zinc Alloy 33*17*10mm or 32.5*16.5*9.5mm ... : Lock Cylinder Material: Brass, Aluminium, Iron, Zinc Alloy Inside Core: Brass, Zinc Alloy Inside Pins: Brass Pins or Iron Pins Length: 45mm, 60mm, 65mm ... : Mormal Key or Computer Key Key Material: Brass Key or Iron Key Open: Double Side Open or Single Side Open Knob ...