[Key Feature]: Heavy-duty door handles with key function can be locked and unlocked from the outside with a key, and then locked or unlocked from the inside with an associated thumb turn. Although primarily used for securing entrances and side doors, it can be used anywhere a little extra security is desired. [Size]: Adjustable latch (distance from the center of the hole to the door edge) - 60 mm or 70 mm (2.4 or 2.75 inches); Fits door thicknesses from 35 mm to 45 mm (1-3/8 to 1-3/4 inches). Rosette: 65 x 65 mm, door handle length: 123 mm. [Reversible]: Works with both left and right-handed doors. Meets your various needs at a great price. [Easy Installation]: Drill a hole on each side of the door: 54 mm. Drill the hole directly into the door edge: 25 mm. A one-person project! Comes with all accessories and instructions. Product Description Size Name: 1-pack | Color Name: Keyed Entry Lever Key Feature: Probrico door handles with key function can be locked and unlocked from the outside with a key, then locked or unlocked from the inside with an associated thumb turn. Although primarily used for securing entrances and side doors, it can be used anywhere a little extra security is desired. Features: Adapts to fit all standard door preparations; Easy installation - one-person project; Internal screws are exposed; Comes with a square strike plate. Specifications: Type: Keyed Entry Door Handle; Backset: Adjustable to 60 mm or 70 mm (2.4 or 2.75 inches); Door Thickness: 35 mm to 45 mm (1-3/8 to 1-3/4 inches); Rosette: 65 x 65 mm (2.5 x 2.5 inches); Handle Length: 120 mm (4.88 inches); Handing: Left and Right, Reversible