Recessed Flush In-Wall box Articulating Arm mount for LED TV Samsung, LG 32", 40" 42" 47" 48" 50" 55" Installs between 16" wood stud centers and TV will be almost Fully Flush on the wall Supports Vesa 100x100mm, 200x200mm, 400x200mm, 400x400mm Heavy Duty, Supports up to 80 lbs for most 43", 55", 65" LED TV units (check Vesa compatibility to make sure your TV is not more than 400x400 Vesa) Interior Includes single gang Knock outs for Electrical and other wiring so everything is easily accessible behind the TV anytime 0-20" Full Extension with Tilt and smooth Swivel and pan