The Shape 18" Aluminum Rods are a pair of 18" long rods that fit studio and LWS 15mm rod clamps, allowing you to use available rod mounted accessories. This pair of rods are approximately 18" long and machined from hollow aluminum tubes. The 18" long rods with chamfered ends that guide the rod into an available rod clamp, even if the rod isn't perfectly aligned or is at a slight angle to the rod clamp. The rods feature chamfered ends that make it easier to insert into available 15mm rod clamps.