1. This ensures that while blocking the impact of the key from entering, the rotation of the lock cylinder wrench is very smooth. 2. We provide lock cylinders of different sizes. You can choose doublelock cylinders or button lock cylinders to meet different installation needs and ensure home security. 3. When inserting and using the key, it rotates evenly without jamming, facilitating the opening and closing of the lock cylinder. 4. The nickelplated lock cylinder is suitable for a variety of door types, including wooden doors, composite doors, metal doors, interior doors, front doors, and most doors with keyholes. 5. If you have any questions about our products, please feel to contact us. We will do our to provide you with a satisfactory reply within 24 hours. 6. The product is durable and easy to install, suitable for most families. 7. The is competitive, with precise matching and delicate appearance, meeting your requirements for the lock cylinder. 8. Upgrade the security of the door lock. You can enjoy higher security without expensive handle upgrades or additional security equipment. 9. This ensures the smooth rotation of the key while preventing the impact of the key from entering.