RAP-B-347U RAM Mounts 1-Inch Composite Ball Adapter with AMPS Plate
Compatible devices:
The RAP-B-347U base consists of a 1" diameter rubber ball connected at right angles to a 2" x 1.7" square base. The base has four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern.