12 Inch Triangular Engineering Scale Ruler 1:100, 1:200, 1:250, 1:300, 1:400, 1:500 by YOSOGO

12 Inch Triangular Engineering Scale Ruler 1:100, 1:200, 1:250, 1:300, 1:400, 1:500 by YOSOGO

Mr. Pen Geometry Set with 6 Inch Swing Arm Protractor, Divider, Set Squares, Ruler, Compasses and Protractor, 15 Piece Set

Mr. Pen- French Curve, Large Circle Template and Ellipse Template (6 Pc), Curve Ruler, Drawing Tools, Drafting Tools, Geometry Template, Drawing Templates, Architectural Templates, Journaling Supplies