The Master Lock Solid Die-Cast Combination Padlock 178D offers strength,security, style and weather protection. The padlock allows you to set andreset your own combination with any 4 digit code you choose offering thousandsof possible combinations. . The 178D is 2 inches wide and the body’s blackpowder coating makes it deal for marine or other corrosive environments. The5/16 inch diameter shackle is 1 inch long and made of hardened steel whichoffers extra resistance to cutting and sawing.Common Uses for the178DBoatsShedsGatesGaragesStorage LockersWorkshopFencesProduct FeaturesEasy toset & reset – numeric combination2in (51mm) Wide solid bodyHardened steelshackle for extra cut resistance4-digit set your own combination convenienceallows for thousands of possible combinationsCombination change key included