The RAM-B-260U includes a #10-24 female threaded hole connected to a 1" rubber ball.
Material
Powder Coated Marine Grade Aluminum
Ball Size:
1" Rubber Ball "B" Size
Note
The "U" in the part number reflects product packaged in poly bag.
B size 1" (Holds up to 2 lbs)
Holder
Base
Adapter
Powder Coated Marine Grade Aluminum
Packaged in Poly Bag