Features SLIDING PAD: Effectively reduces damage caused by switch collisions. Multilayer Coating: The surface polishing coating has good oxidation resistance, not easy to rust, beautiful and practical. Screw hole: you can adjust the height to install. High quality material: studio and durable. Solid ball: softer, more balanced and quiet. Specification: Condition: 100% new Material: cold rolled steel Optional color: white, black Size: approx. 356 x 32.5mm/14.0 x 1.3 inches Features: 1. High-quality material: study and durability. 2. Solid ball: softer, more balanced and quiet. 3. Screw hole: can adjust the height to install 4. Multilayer coating: the surface polishing coating has good oxidation resistance, not easy to rust, beautiful and practical 5. Sliding pad: effectively reduces damage caused by switch collisions Package List: 2 * Keyboard rails 1 set of screws Note: The monitors are not calibrated in the same way, the color of the item shown in the photos may be slightly different from the actual object. Please take the real as standard. Package List