The LCT620A and LCT620A-G Desktop Monitor Mounts feature an attractive height adjustable articulating arm that provide perfect ergonomics with optimum monitor positioning for virtually all users. Choose between the LCT620A with a CLAMP-ON style base or the LCT620A-G with a GROMMET style mounting base for limitless mounting options on any desktop or counter top surface between ½" to 2" (12 to 55mm) thick.