Elements by Weiser provides an expanded choice styles and finishes at an affordable price. Handleset can be locked or unlocked by a key from the outside or with a key/turnpiece from the inside. The rich tones of matte black add the finishing touch to this product.For use on exterior doors where keyed entry and security is neededFeaturing SmartKey re-key technology, re-key the lock yourself in seconds in three easy stepsFeatures an adjustable latch to fit all standard door preparationsLocking mechanism functions with turn piece on the interior of the lockEasily installs in minutes with just a screwdriver