Neewer Film Movie Video Making System Kit for DSLR Cameras Video Camcorders,includes:Shoulder Mount,15mm Rod,Follow Focus,Matte Box(Blue) Gear Nylon and ABS Dial Index Adjustment: 36 Gear drive can be mounted from either side (works for both right-handed and left-handed). 1/4" female adapter at bottom Lens Max support up to 77mm. Compatible with all DSLR cameras, DV. Compatible with industry standard 15 mm Rods.