Ultralight Control Systems Arri Ball

This base adapter by Ultralight Control Systems has a captive 3/8-16 stainless-steel Allen-Head Screw to mount into the camera. In addition there are two locating pins to insure that it will not twist, once installed. Be sure to check that there are two small holes on the circumference of the 3/8-16 mounting hole. If your camera does not have those two locating holes, use the standard 3/8-16 male base adapter sku# 6112.