For back, side or garage entries - also ideal for offices, work out rooms, storage areas or any room requiring access control.Flex lock function allows user to switch between unlocked and automatic re-locking by turning the interior thumbturn above the handleProfessional ANSI/BHMA Grade 2 securityMetal construction adds strength,security and durabilityNo wiring required - installs in minutes with a screwdriver3 year battery life, uses only one 9 battery Lose your keys for the last time. No more hiding keys under the doormat or losing, forgetting, or making extras keys time and time again. Step up to a more secure and flexible solution with Schlage electronic door locks. Install a new keyless door lock or electronic deadbolt yourself—with nothing more than a screwdriver. You’re free to add, change, or delete user codes in just seconds—and to come and go as you please. For more than 90 years, Schlage has built a legacy of providing the highest level of security to homes and businesses. Install a Schlage lock and you install nearly a century of total dedication to security, quality and innovation.