This is a Traditional Styrene I-Beam.FEATURES: Used for Horizontal and Diagonal Members Precision Extruded in White Styrene Plastic Ideal for Museum Quality and Smaller Scale ModelsINCLUDES: Six White Styrene I-BeamsSPECS: Height: 5/32" (4.0mm) Width: 5/64" (2.0mm) Thickness: .030" (0.8mm) Length: 15" (375mm)PlastructPart PLS90514