Product picture - Transvideo 3D Mini Swing Arm with Tie-Down Knob & 3 8"-16 to 1 4"-20 Adapter for CineMonitorHD Transvideo, 3D, Mini, Swing, Arm, with, Tie-Down, Knob, &, 3, 8, -16, to, 1, 4, -20, Adapter, CineMonitorHD Click the image to close this page