Quick installation: We have provided the corresponding accessories, you can quickly remove the old lock cylinder and replace it with our high-quality Euro lock cylinder. Thumb turn euro cylinder lock with key access outside and smooth thumbturn inside for quick, keyless locking on any front door lock or internal door lock. The door lock cylinder is the replacement parts ,can suit for the door which use euro profile lock cylinder.Suitable for the family,office and other place. Key for additional security and helps to prevent them from being copied by unauthorised people who might have occassional access to your keys. 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., Manufacturer: SFQEVHRZ