The Squire Stronghold Re-Codeable Padlock has a unique patented pull button re-codable combination mechanism The internal mechanism has also been treated for optimum durability in harsh outdoor environments With hardened steel shackles ensuring high cutting resistance and a solid brass lock body with hardened internal parts The SHCB65 is a 4-wheel padlock and the SHCB75 is a 5-wheel padlock Encased in black plastic with large solid brass wheels CRIMESTOPPERS supported