RAM Mount Plastic T-Slot Adapter Base with 1.5" Diameter C-Ball RAP-375U

RAP-B-375U RAM Track Ball Flat Panel Adapter - B Size...

RAM Mounts Tough-Ball with 1/4"-20 x .50" Threaded Stud -B B Size (1"), Black

RAP-294U RAM PVC Pipe Socket with Ball - C Size...

RAM DOUBLE U-JOINT SWIVEL ADAPTOR FOR 1.5" "C" SIZE BALLS

RAP-383U RAM Track Ball Quick Release Base - C Size...

RAP-B-351-1U RAM Add-A-Ball Composite Ball Adapter for

RAP-B-383U RAM Track Ball Quick Release Base - B Size...