Fancierstudio FL02M DSLR Rig With Follow Focus Matte Box Gears Nylon and ABS Dial Index Adjustment : 360 degrees Mattebox Material: ABS Follow Focus Mounts onto 15 mm Rod Support Compatible with industry stand 15mm rods Shoulder Pad Gear drive can be mounted from both side Suitable for: All DSLR cameras,video cameras 1/4 female adapter at bottom Lens Max support up to 77mm