RAM Mount RAM-A-CAN II Universal Cup Holder Base w/Double Ball Mount [RAP-299-3-B-102U]RAM A CAN II Universal Cup Holder Base with Double Ball Mount The RAP 299 3 B 102U consists of a double socket arm, two diamond bases and RAM A CAN II cup holder base. The diamond bases measure 2. 43" x 1. 31" diamond base and contain two holes 1. 912" from center to center, positioned at both ends of the diamond base. The hole pattern found on the diamond bases will connect to many RAM cradles, as well as third party cradles including mounts with the