Where professional photography and videography meet, you'll find the Kupo G400512 4-1/2 inch Grip Head, a reliable and versatile tool designed for securing lights and other equipment in a stable position. This high-quality grip head is constructed with a pair of rotating aluminum discs, each attached to a junior 1-1/8 (28mm) stud and receiver. The discs feature two differently sized "V" shaped jaws, perfectly designed to accommodate any accessory with a 5/8 inch or 3/8 inch mounting stud or tubing. These "V" shaped jaws are equipped with "teeth" that securely grip whatever is mounted between the plates, ensuring a firm hold for your equipment.The G400512 stands out with its non-slip aluminum friction disc, a feature that not only maintains its durability over time but also provides the user with positive locking strength and precise control.