It is Strong™ Large Razor Fixed Mount for 37-55 in. Flat-Panel TVs (Black). this low-profile fixed mount makes installation a breeze – and provides the finished look customers love. It mounts snug against the wall, with no sheetrock cutting required. The arms perfectly fit TVs from 37-in. to 55-in., without hacksawing or modification, and they lock into place for extra security. Other smart features include a notched center hole for fast temporary hanging while you grab the level, a kickstand to prop the TV away from the wall while running wires, and an adjustable safety release ring.