●Weight capacity:Max 10kgs. ●Extends screen up to 450mm long as closed as you need. ●Aluminum platform helps coolt the notebook computer. ●C-clamp bracket mounts onto the desktop up to 7cm thickness. ●Retractable keyboard holder to store extra keyboard. ●Platform has 20 degrees tilting and 4pcs anti-skip pads. ●Die-casting aluminum two-step arm. ●The height of screen can be adjustable. ●Meets with VESA 75/100mm.