Operating Stand with Flag Adapter, Standard, Connecting Rod Sold Separately Fabricated from Steel Plate Adjustable Throwing Stroke Available with Vanes (LSF) or with Adapter for Flag (LSF-2A) Mounts Between Two 11' Railroad Ties (Not Included) Used to manually operate the derail block on the SD Series sliding derail ON or OFF the rail head Optional blue or red DERAIL flag available. Ask for details For Derail Types SD-3, SD-4, SD-5, and SD-6 Use Connecting Rod RA1566-1A for near-rail application Use Connecting Rod RA1566-1B for far-rail application