The 15mm Rod Clamp from SmallRig is equipped with two counterbore holes and a 1/4"-20 threaded hole. It can attach to the SmallRig Camera Stabilizer Handles via two M4 screws and attach the Microphone Support to a 15mm rod. Furthermore, the clamp works with the SmallRig Single RailBlock and Mini Mounting Plate. The 1/4"-20 threaded hole can attach to the 15mm Micro Rods for rotating a mounted monitor in different directions.