Holds most monitors up to 3 28 with VESA 75 x 75 mm or 100 ﾃδ100 mm Compatible;Quick release mounting brackets for easy installation;Mounting heads rotate 360 degrees, tilt up/down 30 degrees , swivel left/right 180 degrees;With A Heavy-Weighted Metal Base. Also Can Be Bolted, Easy To Install;Monitor viewing height can be easily adjusted by moving the arms along the Pole. The height of each monitor can be individually fine tuned