RAM® Drill-Down Double Ball Mount with 1/4"-20 Stud - B Size Medium rpr-271s The RAM-B-166-TAB17U consists of a

The RAM-B-166-TAB17U consists of a 3

On the opposite end of the arm

5" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm

this allowing you to disengage the screwing of the knob

RAM® Drill-Down Double Ball Mount with 1/4"-20 Stud - B Size Medium rpr-271s The RAM-B-166-TAB17U consists of aThe RAM B 101 237U consists of a double socket arm, 2. 5" diameter round base and 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. The round base contains pre drilled holes, including the universal AMPs hole pattern. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at both ends