1. This high security door lock is constructed of extruded aluminum and comes in a satin nickel anodized finish 2. This reinforcement lock meets the building code requirements, and it is designed to withstand up to 800 lbs. 3. of force, making it virtually impossible to defy from the exterior. 4. This lock features a spring-loaded, child-safe and tamper-resistant design that protects against unauthorized entry by preventing lock bumping and lock picking (while in the locked position). 5. Installation of this non-handed reinforcement lock can be accomplished in just minutes, and it can be used on any swing-in door of any door thickness Colour:Black Material:aluminum alloy Package Contents: 1 Security Door Lock kit 4 x long screws 4 x short screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.