SmallRig 15mm carbon fiber rod (6", pair) 1872 is a pair of rigid and durable yet lightweight rods that won't weigh down your camera support rig. These rods are 150mm long and machined from hollow carbon fiber tubes. They are precision crafted for 15mm support systems, allowing you to attach a wide variety of available accessories, such as follow focus, matte boxes, and more. If you have other demands, please consider the 15mm carbon fiber rod 8 inch and 15mm carbon fiber rod 12 inch. They are lightweight, highly rigid, and corrosion resistant.