1. This ensures smooth rotation of the cylinder wrench while blocking access to the impact keys. 2. We offer locking cylinders in various sizes. You can choose between double and button lock cylinders to meet different installation needs and enhance home security. 3. When inserting the key, the rotation is smooth without jamming, making it easy to open and close the lock cylinder. 4. Nickelplated cylinder lock, suitable for various doors including wooden, composite, metal, interior, front doors, and most doors with keyholes. 6. The product is durable and easy to install, making it ideal for most households. 7. It offers a competitive , fit, and an appearance that meets your lock cylinder requirements. 8. Enhanced door security allows you to enjoy improved safety without costly handle upgrades or additional protective devices. 9. The key door lock features unique anticollision protection and prevents pin trapping, ensuring smooth key rotation while blocking impact key access.