RAM-B-237U RAM Ball Adapter with 1/4"-20 Threaded Post -...

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

RAM Mounts 1/4"-20 Ball Adapter with B Size 1" Ball, B-Size (1"), Black

RAP-B-366U RAM Ball Adapter with 1/4"-20 Threaded Stud f...

RAM Mounts RAM-B-348U Ball Adapter with 1/4"-20 Threaded Hole B Size 1"...

RAP-B-379U-252025 RAM Tough-Ball with 1/4"-20 x .25" Threaded S...

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