Features: <br>1. Screw hole-can adjusted the height to install <br>2. Solid ball - smoother, more balance and quiet <br>3. Slip pad - effectively reduces the damage caused by switch collisions <br>4. High quality material - study ans durable <br>5. Multi-layer plating - the polishing plating of surface has good oxidation resistance, is not easy to rust, beautiful and practical <br> <br>Specification: <br>Condition: 100% Brand New <br>Material: Cold Rolled Steel <br>Optional Color: White, Black <br>Size: Approx. 356 x 32.5mm / 14.0 x 1.3in <br> <br>Package List: <br>2 * Keyboard Rails <br>1 Set of Screws <br> <br>Note: <br>Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard<br>1、Screw hole-can adjusted the height to install <br>2、Solid ball - smoother, more balance and quiet <br>3、Slip pad - effectively reduces the damage caused by switch collisions <br>4、High quality material - study ans durable <br>5、Multi-layer plating - the polishing plating of surface has good oxidation resistance, is not easy to rust, beautiful and practical