Chief Manufacturing TS525TU Large THINSTALL Dual Swing Arm Wall Display Mount - 25" Extension is a lightweight, low-profile full-motion wall mount for TVs 37"-58". Easily installs with one person by mounting the top rail and sliding on the assembly. The ultra Low Profile Sleek design collapses to 1.5", providing an ultra-low profile for all types of TVs, including LED, LCD and Plasma.