This mount fits 22-55" TVs with hole patterns up to VESA 400x400mm (16x16") and up to 66lbs. The articulating arm extends up to 20" from the wall giving space for access behind the TV and collapses to 3.25". The unique ballhead motion at the end of the arm mount allows for 360° rotation, making transitions from portrait to landscape orientation possible. This also makes leveling after installation convenient in any orientation.