RAM 2.43 x 1.31 Diamond Base with 1inch Ball

RAM 2.43" x 1.31" Diamond Base with 1" Ball The RAM-B-238 consists of a 1" diameter rubber ball connected at right angles to a 2.43" x 1.31" diamond base. The base has two holes 1.912" from center to center, matches the industry standard AMPS hole pattern and will connect to a large variety of RAM Mount and third party cradles.