Our standard and Large follow focus gear ring is made of fiber-reinforced composite and uses brass thread inserts and features the industry standard 0.8 pitch meaning it will work with not only the Follow Focus but any 0.8 pitch unit. The design of the gear ring allows for a full 360 degree rotation and maintains perfect pitch size throughout the rotation. The gear attaches to lenses securely using our stainless steel spokes with integrated nylon tips. Each ring comes with 5 sets of 6spokes (6×3/8″, 6×1/2″, 6×5/8″, 6×3/4″, 6×1″). The Large Gear Ring is intended for use with wide diameter lenses (typically on telephoto lenses).