Chief Manufacturing TS318TU Medium THINSTALL Dual Swing Arm Wall Display Mount - 18" Extension is a lightweight, low-profile full-motion wall mount for TVs 26-52". Easily installs with one person by mounting the top rail and sliding on the assembly. The ultra Low Profile Sleek design collapses to 1.8", providing an ultra-low profile for all types of TVs, including LED, LCD and Plasma.