IDEAL USE: The privacy function is perfect for use on bedroom and bathroom doors where locking may be desired. EASY INSTALLATION: Self-aligning screw holes make installation hassle-free; everything is included to upgrade existing interior single borehole doors yourself in minutes with only a screwdriver CERTIFIED HIGHEST DURABILITY: High-quality metal construction and quality craftsmanship for everyday strength and peace of mind, Metal construction adds strength, security, and durability. TRUSTED WARRANTY: Better Home Products locks are backed by a limited lifetime mechanical and finish warranty, and a 5-year electronics warranty APPLICATION: For use on interior doors requiring no locking functionality, such as hallway, closet doors, and passage doors