Product specifications Product color: Black Material: metal, environmentally friendly Gross weight: 5kg Applicable table thickness: 0-1.96inch feature: 1.100% brand new and high quality 2. No need to drill. It's sturdy 3. The sturdy C-clamp can hold everything tightly in place without damaging your desk. 4. The ergonomic sliding keyboard tray under the desk can be easily installed in 5 minutes 5. The surface area is really large; it is suitable for extended keyboards (the kind with ten-key numeric keyboard), and there is still enough space for the mouse/mouse pad. Package Contents: 1X KangruiBo keyboard tray Please note 1. Since it is manual measurement, please allow an error of 1-3cm, thank you for your understanding. 2. The monitor is not calibrated. The color of the product shown in the photo may be slightly different from the actual product. Please refer to the actual product.