Smooth Use: When you insert the key to start using, the rotation will be smooth and there will be no jam, which is convenient for you to open and close the lock cylinder. Enhanced Door Security: Enjoy enhanced security without handle upgrades or extra security devices with this cylinder door lock barrel. Wide Range of Adaptation: The lock cylinder can be adapted to most door types, including wooden doors, metal doors, inner doors, front doors and most doors with keyholes. Easy Replacement: This lock cylinder offers convenient replacement options while incorporating Anti-Drill, Anti-Pick, and Anti-Bump features, providing both ease of use and enhanced security. Installs incredibly easily with a screwdriver in just a few minutes for anyone to DIY without hiring professional door fitters., Manufacturer: ADGCFKOP