SmallRig mini Follow Focus F40 3010D, with its exquisite and compact design, aims at providing precise and quick focus control for video shooting. It is made of new materials for optimized zoom control and features an anti-sweat, anti-slip focus knob (inspired by a sports car hub) to feel comfortable. In the box, there is Rod Clamp (with Nato rail) 3011, which can be easily locked to the side or the top of most cages via a 1/4""-20 screw to allow reversing the focus action a lightweight Silicone Gear (3852), which, when working with the M0.8-43T gear, drives lens through friction, without applying a follow focus ring, shortening your rig list and simplifying installation and an all-metal 15mm rod clamp with jib, which has improved rotation angle to support different lenses. Adjusting A/B stops helps quickly set the focal length you desire. Besides, a storage case is included for more convenience and portability.Note: The silicone gear is M0.