RAM® 11x3" Electronics Base.
RAM® -D-111BU universal mounting plate... consists of a 2.25" diameter rubber ball, connected at right angles to a flat 11" x 3" rectangular plate. The plate contains different combinations of pre-drilled holes which will match up to many electronic devices. Note: This plate is a universal mounting bracket with a selection of mounting hole locations. In certain applications additional holes may need to be drilled to fir with your electronic device.