Fabricated from steel plate, the LSF-2A Operating Stand mounts between two ties and is used to manually operate the derail block on the SD Series sliding derail ON or OFF the rail head. The LSF-2A operating stand has an adjustable throwing stroke with the red and white vane kit and comes with an adapter to attach to a signal flag (see compatible flags below). Installation of the LSF Operating Stand requires two 11-foot long railroad ties (not included). For Derail Types SD-3, SD-4, SD-5, and SD-6. Weight 81 lbs. (36.74 kg). Use Connecting Rods RA1566-1A for near-rail application; use RA1566-1B for far-rail application.