The RAM-B-101U-B-TE1 consists of a zinc coated u-bolt base, 2.38" long double socket arm and 1" diameter rubber ball, connected to a 1/4"-20 camera thread. Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter. The base includes black cover caps to be placed over the exposed ends of the u-bolt. The included composite rail adapter can narrow the rail to a minimum width of 0.5". The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The included universal camera and camcorder base, consists of a 1" diameter rubber ball, connected to a 1/4"-20 camera thread. The male thread matches most standard camera and camcorder female threads found on the bottom of the camera.

U-Bolt Dimensions:
Accommodates rails from 0.5" to 1.25" in diameter. 

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.