The RAM-B-273-1U consists of a 1" rubber ball connected to a 1/4"-20 X 0.5 threaded post.
Material:
Powder Coated Marine Grade Aluminum
Ball Size:
1" Rubber "B" Ball Size
Note:
The "U" in the part number reflects product packaged in poly bag.
B size 1" (Holds up to 2 lbs)
Base
Powder Coated Marine Grade Aluminum
Packaged in Poly Bag