CM® Crane Bridge Kit, End Truck Push, Series: Yale® Hoist, 2 ton, 6 in Minimum I Beam Height, 8 in Maximum I Beam Height, 30 ft Usable I Beam Span Maximum, 3-3/8 - 8 in I Beam Flange Width, Steel, High Gloss Enamel Coated, Pressed Steel Wheel Caster CM® 905361 Yale® Hoist End Truck Push Crane Bridge Kit, 2 ton Load, 6 in, 8 in, 3-3/8 - 8 in I Beam Flange