RAM Mounts Double Ball Mount with 100x100mm VESA Plate and Large Knob

The RAM-D-101-NEC2U consists of a 3.68" diameter round base, STANDARD length double socket arm with large knob and 4.75" square plate. The 3.68" diameter round base has pre-drilled holes, including two holes at 180 degrees and three holes at 120 degrees. The 4.75" square plate contains 4x100mm holes and 4x75mm holes in each corner. Designed into the mount is a 2.25" diameter patented rubber ball and socket system with adjustment points at both socket ends of the arm.