Scale-Triangular Inch 12In. Div.31 Architect

Ideal for professional and student architects. White, solid plastic. Die-engraved graduations. Colour-coded grooves. 12” tri-scale. 3/32, 3/16, 1/8, 1/4, 3/8, 1/2, 3/4, 1-1/2, 3, 16.