The RAM Yoke Clamp Base with 1" Rubber Ball and 1/4-20" Tap from RAM MOUNTS includes a 1/4-20" thread in the back side of the 1" ball. The clamp fits a rail 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 so when connected to a rail, the ball sits parallel to the rail.
UPC: 793442903830
