DBI-SALA Beam Trolley Anchor* Glides Easily Along Beam The DBI Sala Beam Trolley can be used with self retracting lifelines on horizontal beams and glides with the worker along said beam. * Attaches to Horizontal Beam The Trolley Anchorage Connector can be attached anywhere along the beam including the midpoint. * Trolley Guards The Trolley Guards protect the wheels from damage and keeps beam clear of debris. ** Fits 3" to 8" flange width thickness up to 11 16". * The Beam