The yoke clamp base will fit rails in diameter from 0.625" to a maximum of 1.25". The 1" rubber ball is at a right angle to the plane of the mount; when connected to a rail, the ball sits parallel to the rail.
Clamp Base Dimensions:
Accommodates rails from 0.625" to 1.25" in diameter
Material:
High Strength Composite and 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)
High Strength Composite
Powder Coated Marine Grade Aluminum
Base
Aircraft
Handlebar/Rail
Packaged in Poly Bag