The 2-1/2″ Grip Head consists of a pair of rotating aluminum discs attached to a baby 5/8″ (16 mm) receiver. The discs have four different sized “V” shaped jaws for varying diameters, machined with “teeth” that grab whatever is mounted between the plates securely. The 2-1/2″ Grip Head features an oversized ergonomic “T” handle and dedicated roller bearings for maximum torque. This grip head uses a non-slip aluminum friction disc that will maintain its durability over time that offers the user positive locking strength and precise control. Constructed around a solid steel central bolt with a fixed solid pin to secure it to the aluminum casting for increased strength and durability. The 2 1/2” Grip Head is most often used in conjunction with a grip arm, giving you complete flexibility to position gobos “go betweens” such as flags, scrims and silks as well as other accessories virtually anywhere. Stealthy black powder coated finish