COMPATIBILITY - Fits Screens up to 23" - 55" with 100x100mm, 200x100mm, 200x200mm 400x400mm mounting pattern. Mount on ceiling or pitched roof MOTION - Tilts -80° to 0° allowing for easy storage, cleared up space, and out-of-way safety; 45° swivel to allow for a variety of viewing angles CAPACITY - Supports weight up to 44 lbs and strength tested at 3 times this weight to ensure complete screen safety HEIGHT ADJUST - Mounting plate on the arm allows for your TV or monitor to be height adjusted up to a total of about 4 inches. (Min 20.5" to Max 24.2" ) MATERIAL - Constructed of solid steel and aluminum for durability and longevity HARDWARE - Comes with all hardware necessary for easy installation. WARRANTY - Comes with a 2-YEAR WARRANTY