Open-Box, new item [Keyed Entry Function]: Probrico keyed entry door knob sets can be locked and unlocked from the exterior with a key and locked or unlocked from the inside with an associated turn-button. While primarily used to secure entrances and side doors, they can be used anywhere extra security is desired. [Size]: Adjustable latch (the distance from the hole center to the door edge) - 60mm or 70mm; fits door thickness: 35mm to 45mm. [Reversible]: Works with left and right-handed doors. [Easy Installation]: A one-person project! Comes with all accessories and instructions. - Probrico 3 Pack Stainless Steel Entry Door Knob Set with Key - Satin Nickel