These are Fineline Styrene 4-Columns.

FEATURES: Used for Vertical and Horizontal Construction
          Precision Extrused in White Styrene Plastic
          Ideal for Museum Quailty or Smaller Scale Models

INCLUDES: Ten White Styrene H-Columns

SPECS:    Height: 1/16" (1.6mm)
          Width: 1/16" (1.6mm)
          Thickness: .020" (0.5mm)
          Length: 10" (250mm)
                                                                   CJH 02/14/00
                                                                          ir/jl