For UltraWide Screens: Computer monitor mount fits most 17- 49 inch Flat Curved Screens including 1000R Curved Screens and holds 4.4 lbs to 44 lbs in weight; VESA patterns include 75 x 75 mm, 100 x 100 mm and compatible with different size screens, including but not limited to 49 47 45 43 42 40 38 35 32 30 28 27 25 24 23 22 21 20 19 17 inch screens Fully Movment and Vertically Stacked: Its pole-mounted design give your monitor wider moving range (tilt, swivel, height adjustable) and Vertically Stacked option let you get better viewing experience with two stcacked ultra wide monitors; You could set your monitors to customized angles and positions freely while saving up much valuable space on your desktop Sturdy Instruction and Easy Assemble: This 2 monitor desk mount is made of aluminum and steel and passed strength weight test through UL witness Lab; The installation steps are very easy and take less time;