HEAVY DUTY COMPATIBLE: The monitor arm is specially designed for mounting most HEAVY and CURVED large screens 27"-45" in size and up to 5-16KG in weight and is compatible with 75 x 75 mm and 100 x 100 mm VESA. Suitable for heavy duty computer and gaming monitors. (Doesn’t fit Monitors under 5kgs or over 16kgs. FULLY ADJUSTABLE: Tilt angles +15° to -60°, Swivel angles ±90°and 360° Rotation, Max upright 285mmm and max extension up to 640mm. Fully adjustable to ensure your viewing angle is comfortable. The weight of the mount by itself is near 6KG, and made with solid alloy and steel construction, this the most study monitor you can find in the market. STURDY & STABLE CONSTRUCTION: Arm stand with both C-Clamp mounting and Grommet Mounting are supplied in the box and accommodate Desk thickness 20mm to 90mm. Extra USB Charge hub is available. INSTALLATION: Comes with detailed instructions and all the necessary hardware, Please DON'T adjust the tension screw without the monitor mounted on it. The whole VESA Plate of this product is 118 x 118mm, Please pay special attention to the size of VESA Plate if your monitor is curved monitor or your VESA mount is recessed inside the back of your monitor.