Premium Aluminum Mount: Provides excellent support for one monitor screen weighing 4.4 lbs to 26.4 lbs, and the built-in elbow spring gauge allows perfect weight adjustment at any level Fits 17' to 40' Screens: Holds most 17 to 40 computer monitors on the market (both flat and curved screens). The quick release VESA bracket has 75x75mm and 100x100mm mounting capability