The dedicated 15mm LWS Rod Support is designed for the SmallRig 2660 matte box and features an open-end rod port on one end. With this flexible design, it can be clamped on and off by quick release without having to remove any gear from your rig. It secures to the bottom of the matte box via an integrated 1/4"-20 screw and is adjustable vertically and horizontally to support different lenses.