RAM® Marine Electronics Ball Adapter RAM-101-B-SAE1P one set of holes are

one set of holes are at 75mm centers and the second is at 100mm centers

3" diameter suction cups to any B or C size ball with the universal AMPS hole pattern

The RAM-B-102-GOP1U consists of a medium length B-size arm with a diamond base with 2 hole AMPS hole pattern and an Action Camera Adapter

7" plate and custom hardware for the TomTom Rider 2/Urban Rider

5" base that contains the universal AMPs hole pattern to attach the holder

RAM® Marine Electronics Ball Adapter RAM-101-B-SAE1P one set of holes areThe RAM D 115BU, universal mounting plate, consists of a 2. 25" diameter rubber ball, connected at right angles to a flat 6. 25" x 2" rectangular plate. The plate contains different combinations of pre drilled holes which will match up to many electronic devices.