FUNCTION: The entrance door lock can be locked and unlocked from the outside with a key, and from the inside by the relevant turning button on the handle. Solid post safety bolts for anti-saw protection. DURABLE DESIGN: The door handle is made of stainless steel, which is sturdy and durable, and has strong corrosion resistance to greatly extend the service life. SECURITY: The door lock provides relative security and comfort for the user through the perfect combination of the door lock and the key, and strengthens the protection of personal privacy. INSTALLATION: The exterior door knob is supplied with all fixtures and accessories including color matched screws, lock cylinders and keys. Easy to install. Just install the knob group on the left and right sides of the door. APPLICATION: The entrance key lock can be used for inner or outer door with thickness of 30mm-50mm. Tubular latches are adjustable to 60mm (distance from hole center to door edge). Generally suitable for office, bedroom, bathroom, study, etc. Specification Occasion: Bathroom & Bedroom Color: Sliver Material: Stainless Steel Length: approx210mm Width:80mm Height: approx75mm Features:interior door locks Door directions: general-purpose Key: with key Center distance (lock center to the door edge): 60mm Dead bolt length: 70mm Package Included 1 X Lock