Key Features Pair of 15mm Rods Lightweight Carbon Fiber Construction This 15mm Carbon Fiber Rod Set from SmallRig lets you attach 15mm rod-mounted accessories to your rig. These carbon fiber rods are 12" in length and, with the appropriate baseplate, will conform to the 15mm LWS rod standard for accessory mounting. The carbon fiber construction keeps these rods lightweight, while allowing them to maintain the rigidity necessary for accessory support.