1. DIY Design – Save desk space by converting your own keyboard tray into a sliding shelf under the desk with this keyboard tray clamp holder. The package includes 2 brackets, 2 Cbrackets with padding, and mounting hardware. 2. Ergonomic Design – With this keyboard tray clamp holder, you can effortlessly slide your tablet under the desk and type at an ergonomic angle that relieves strain on your wrists and shoulders. The rails are made of solid steel, ensuring a sturdy construction. 3. Sturdy CBrackets – Use this keyboard tray clamp mount without damaging your desk (recommended for desks with a thickness of 18 cm). The Cclamps securely hold everything in place and can be easily tightened by hand. Please measure your desk size before use (if the center of gravity is too far from the desk, the clamp may apply excessive pressure and cause deformation). 4. ClipOn Design Protective Sponge Pads – The keyboard tray clamp holder fits desks up to 18 cm thick. The nonslip handle prevents unwanted movement and desk damage. The and bottom sponge pads between the Cclamp and your workstation protect your desk from scratches and dents.