The 4.5" Junior Grip Head from Impact is designed to convert a junior stand into a more versatile support that can handle overhead frames or other large modifiers as well as a light fixture. Made of aluminum alloy and steel, the head uses a 1-1/8" junior pin for mounting and offers a receiver of the same size at the top for your equipment. Two rotating discs can be locked or released with an oversized handle, accepting grip arms with a diameter from 9.65 to 16mm between its jaws. Included with the product is a hex key, which can be used to loosen or replace the pin assembly.