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.