Compatibility : ErgoFocus triple monitor mount is designed for 3 most 13” to 32” flat screen and curved computer, hold up to 17.6 lbs, compatible with VESA standard 75x75mm and 100x100mm | Extra Tall Height Adjustment : Reach a height of 31.7", the extra tall pole is more practical for many situation.The viewing height can be adjusted flexibly. Elevate the monitor up to eye level for a comfortable, ergonomic viewing experience. Choose sitting or standing position your want | Multiple Adjustment : Triple monitor stand features +90° to -90° tilt, 180° swivel, 360°rotation.This full range motion monitor desk mount can be positioned or stacked in many different ways | Desk Space Saver : Vertical monitor desk mount elevates your monitors up without taking up your valuable desk space, fits most of desk thickness of 0.39"-3.45"(C-clamp option) or 0.39-2.76", and hole diameter of 0.39-2.36"(Grommet option). Integrated cable management to keep cables tucked in arm neatly | Easy Installation : Comes with detailed instruction and all needed hardware, this 3 monitor stand is easy to installation. Simply attach it to the edge of your desk and adjust to your desired position in minutes. If you have any pre-purchase or installation questions, please do not hesitate to relate us