Specification: Condition: 100% Brand New Material: Copper  Color: As picture shown Length: 60mm(30/30)/2.4in Packing size: 8*4*3cm/3.1*1.6*1.2in Application: Wooden doors, aluminum doorsEXTRA SECURITY: Solid pure copper cylinder keyhole, solid steel latch, high security, with anti-pry and anti-collision function, suitable for the door that needs of keys to enter and protect privacy.Powder metallurgy material, the friction coefficient between the surface of the material is small, long service life and good reliability, it is sturdy and durable. WIDE USE: Suits for wooden doors, aluminum doors. Groove and cutting edge design, luxury, High-grade, atmosphere, beautiful and more fashionable. With extreme durability, it secures your home safer. SAFE: Made of high-quality copper, it has strong corrosion resistance and is not easy to rust. Security protection, comprehensive upgrade, 100,000 times to open. Significantly enhances the anti-theft and ease of use of the lock cylinder. EASY TO INSTALL:  Only a screw driver are used for the entire installation process,easy to install locked deadbolt in just a few minutes, can save money and time. Only need a screwdriver, more easier than ordinary mechnical lock. REST ASSURED PURCHASE: Please carefully confirm the size to meet your needs before purchase. If you have any questions about the product or use, please feel free to contact us. Our best customer service will give priority to answering your questions.