Elements by Weiser provides an expanded choice styles and finishes at an affordable price. Both knobs/levers can be locked or unlocked by a key on the outside or turn piece on the inside. The rich tones of matte black add the finishing touch to this product. The matte black finish provides a rich and warm complement to the product’s style.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 stepsFully reversible lever, can be installed on both right-handed and left-handed doorsEasily installs in minutes with just a screwdriver