Quad Monitor Mount Arm - Fits 13, 15, 17, 19, 20, 22, 23, 24, 27 Inch Computer Screens, Height Adjustable, Clamp and Grommet Base, VESA 75x75 and 100x100, Black COMPATIBILITY - Quad Desktop Monitor Stand for 27, 24, 23, 22, 21, 20, 19 inch and smaller computer screen sizes. Fits VESA 75x75 and 100x100 patterns. FULL MOTION - Adjust your monitors to fit your viewing angle. VESA heads can rotate your monitors from portrait (vertical) to landscape (horizontal) positions. Swivel left or right 15 degrees, tilt up or down 45 degrees. HEIGHT ADJUSTABLE - Raise or lower each pair of monitors up or down the pole for ergonomic viewing options. This allows ergonomic seating posture to ease back end neck pain. CURVED ARMS - Create immersive and continuous viewing experience with curved view for gaming and for work. Curved and height adjustable horizontal rail for improved viewing position. HEAVY-DUTY - Your monitors are safe with this mount. Made from steel and aluminum components with 70 lb weight capacity. Large clamp connection to desk with grommet install function.