Buy on Amazon : br br indiSystem DSLR 24 Inches Shoulder Mount Rail system for Follow Focus Mattebox - indiRAILSpro br br 24 shoulder mount rail system Featuring Quick release plate double rod mounts and carbon fiber rods br Best fit for DSLR cameras br Rail Systems help take the weight off the front of the camera and the strain off the lens mount br Industry standard 15mm carbon fiber rods br Specifically designed to work with Follow Focus and long lenses