Features: Security protection, comprehensive upgrade, 100,000 times to open. Made of pure copper, it is sturdy and durable. Made of high quality copper, it has strong corrosion resistance and is not easy to rust. Significantly enhances the anti theft and ease of use of the lock cylinder. Powder metallurgy material, the friction coefficient between the surface of the material is small, long service life and good reliability. Specification: Condition: 100% Brand New Material: Copper Color: As picture shown Length: 65mm(32.5/32.5)/2.6in Packing size: 9.5*4*3cm/3.7*1.6*1.2in Application: Wooden doors, aluminum doors Package List: 1 * Lock cylinder 1 * Screw 3 * Keys Note: Please allow slight dimension difference due to different manual measurement. Thanks for your understanding!