【Key Function】: The exterior door lock can be locked and unlocked from the outside using a key, and then locked or unlocked from the inside using the associated rotary knob. Although it is primarily used to secure front doors and side doors, it can also be used anywhere additional security is needed. 【High Quality】: This door handle is made of premium aluminum alloy with high hardness, strong abrasion resistance and corrosion resistance. The comfortable grip, polished finish and smooth touch add a touch of sophistication to your home. The silent lock body and smooth design help reduce noise when unlocking the lock. 【Size】: Adjustable latch (distance from the center of the hole to the edge of the door) - 60 mm or 70 mm. Suitable for door thickness: 30 mm to 45 mm. Drill holes on both sides of the door: 58 mm. Drill holes directly into the door edge: 25 mm 【Easy Installation】: This door handle with lock comes with all necessary mounting accessories and instructions, easy to install with