Compatibility - Dual monitor mount ideal for most screens up to 27 and 22lbs each with 75x75mm or 100x100mm backside mounting holes. Aticulation - Rotate 360°, tilt ±45° up and down, swivel ±45° left and right, extra tall height adjustment along the center pole. Two install options - Free standing base let you easily move your monitors to anywhere. Optional grommet base (fits desk up to 4 thickness) save your valuable desk space. Integrated cable management - Keeps your desk tidy and clean by organizing your power and AV cables in detachable cable holder. Easy installtion - Step-by-step user manual and organized hardware kit for hassle free mounting.