Protect your home and office with this durable rim lock with a superior mechanism and manufactured from high quality mazak steel in satin nickel finish, Solid metal corrosion and force-resistant body, Suitable only for wooden doors, Long keys with extra large-head for easy operation, Can be opened from outside with a key and a knob on the inside, A master key so secure that only one in a 100 million locks opens with the same key, Note : Actual product may be different from display image.