Attach a SmallRig Star-Trail, Revo-Arcane, or Mini Series matte box to a rail support system using the SmallRig 15mm LWS Support. A 1/4"-20 anti-twist screw secures the matte box, and dual 15mm LWS rod clamps secure the support to a compatible rail system. The support is vertically adjustable 0.8" and accommodates a wide range of DSLR and cine lenses. A horizontal support at the bottom prevents tilting for an additional layer of security.