Pro Steady DSLR Complete Movie Rig with Shoulder Mount and Follow Focus System and a Matte Box Shading Card for SLR/Video Cameras Flexible designed, easily adjust into different shooting mode Adjustable Lens gear belt, and Dual Hand Grip Can be mounted with Follow Focus (included) for precise focus control Comfortable Shoulder Pad, Reversible Follow Focus The Matte Box could be adjusted the height according to the lens of camera on the rail rod system keeps light from entering the rear