Latch bolt is operated by lever door handles and can be easily reversed to suit any door, 20 mm anti-saw dead bolt locked and unlocked from either side by key Supplied with two standard Yale keys; additional replacement keys can be ordered from a locksmith Yale Deadbolt lock with 5 levers do not require door handles and can be operated from both sides of the door with 2 x keys provided together with the locks Yale 5 lever deadbolt lock are recommended for use on wooden doors, Weight: 0.71429772888 Pounds, Manufacturer: Yale