The Master Lock No. 175LHSS Resettable Combination Padlock features a 2in (51mm) wide solid brass case for strength and weatherability and a 2-1/4in (57mm) tall, 5/16in (8mm) diameter stainless steel shackle for corrosion and cut resistance. The 4-digit dials allow you to set-your-own combination and reset to restrict/change allowed access – 10,000 combinations available.