The henry squire stronghold re codeable padlock with 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 now available in customer focussed packaging