Abus 72 Series Coloured aluminium padlocks with a precision extruded, cut and drilled pure aluminium body which is light and stron Rustfree precision 6 pin tumbler cylinder with a hardened 7mm steel shackle. Zinc plated brass lock mechanism, to protect against chemical corrosion.   W x 38mm   H x 73mm   D x 17mm Shackle Thick 7mm Shackle Internal W x 20.5mm  H x 24.5