The Master Lock features a 40mm wide brass body to resist the elements and a 21mm tall, 6mm diameter hardened steel shackle for excellent cut resistance. Ideal for cabinets & fences, the non-rekeyable 4-pin tumbler cylinder provides greater pick resistance. 40mm wide brass body provides resistance to the elements 21mm tall, 6mm hardened steel shackle Non-rekeyable, 4-pin tumbler cylinder provides pick resistance