: The door lock adopts powder metallurgy material, the friction coefficient between the material surfaces is small, the service life is long, and the reliability is good. Safety Protection: The lock cylinder has been fully upgraded, with safety protection, can be opened 100,000 times, and has a . Cylinder Copper lock cylinder: The lock cylinder is made of Good quality copper, which has strong corrosion resistance, is not easy to rust, and is durable. Scope of application: This lock cylinder is durable, safe and anti-theft. It can be installed on wooden or aluminum doors to protect the safety of rooms and homes. Solid structure: The door lock has a solid brass structure and a single open door, which greatly improves the anti-theft and ease of use of the lock core. Size: about 65mm (32.5 + 32.5) Color: Gold (due to the display screen, there may be color difference) Quantity: 1 pieceYeuri Material: chrome-plated steel aluminum alloy, does not rust, size: about 15 x 5.3 x 1.8 cm, maximum door opening angle of 175 degrees.