The RAM-B-202 consists of a 1" diameter rubber ball connected to a flat 2.5" diameter base. This mount has pre-drilled holes, including the universal AMPS hole pattern.
We've gone "ala carte" with most of our RAM pieces, build your mount however you want it! Please let me (firstname.lastname@example.org) know if there's something you'd like that isn't listed, or if you have questions about how to build your personal mount.
RAM Mounts 2.5" Round Base
Produced by RAM Mounts of USA