Heavy Duty Security Padlock provides extra protection of your property. Ideal for Sheds, gates,garages,trailers,storage units,both industrial and residential uses. 3 sets of solid brass keys are included. Chrome plated hardened steel shackle designed for maximum protection against sawing,prying and rust. Hardened double ball locking mechanism is equipped for highest resistance for prying and blowing. This security padlock is build for long lasting security and durability.