The Master Lock® number 175 resettable combination padlock features a 2 in wide solid brass case for strength and weatherability and a 1 in tall, 5/16 in Dia hardened steel shackle for excellent cut resistance. The four-digit dials allow you to set your own combination and reset to restrict/change allowed access. Set your own 4-digit combination for convenience and security. Reset to any of 10,000 personalized combination.