Guard Security Strong Layered Steel Body Padlock Set of 4 HARDENED STEEL SHACKLE: Even people with saws and bolt cutters will be foiled by this padlock thanks to the hardened steel shackle. The precision engineering and 100% factory quality tested ensure that that only the key holder is unlocking this padlock. RESISTS FORCED ENTRY: The internal brass pin cylinder is the ultimate in lock technology. It prevents people from picking the lock to get into your locker or trailer. Your belongings and equipment are more secure than ever. PREVENTS DUPLICATION: Guard padlocks use hundreds of key variations to prevent duplication. Padlocks keyed alike can be ordered through your dealer so you can have uniform locks throughout. You dont have to worry about people with other Guard Security lock keys being able to open your padlock. GUARD SECURITY QUALITY TESTED: Every Guard Security Padlock is individually tested at the factory to ensure smooth performance before packaging. Guard Security keyed locks come with rust resistant brass keys and use common keyways for duplication. PRODUCT SPECIFICATIONS: Package contains (1) Guard Security Strong Layered Steel Body Padlock Set of 4. Hardened steel shackle protects against sawing and cutting. Precision engineered double locking. Rugged steel laminated riveted late construction built for strength. Brass pin cylinder resists picking. Protective bumper. Includes two keys.