Display Arm Desk Mount Lifting Retractable Rotating Computer Display Stand Holder 12kg Maximum Adjustable VESA Stand for 27-40 Inch Display Item Type: Adjustable Display Stand Material: Aluminum Alloy, Steel Plate, ABS Applicable Display: 27-40 inches Weight Capacity: 2-12kg / 4.4-26.4lbs Mounting Holes: VESA Standard (75 x 75mm / 2.95 x 2.95in, 100 x 100mm / 3.94 x 3.94in) Vertical lift maximum distance: Approx. 310mm / 12.2in Front and rear stretching maximum distance: Approx. 630mm / 24.8in Upper and lower flip angle: +85°~-30 Left and right flip angle: ±90° Horizontal and vertical screen rotation angle: 360° Center/base rotation angle: 360° Application: Great Sitting Posture Gaming/Programming/Stock Trading/Studio