ALVIN, Even Ellipse Master Template 6.5" x 11" Model TD1267, Plastic Drawing and Drafting Tool, Great for Students and Professionals Alike - 6.5 x 11 x .030 Inches
Contains 78 ellipses in five projections of 20, 30, 40, 50, and 60. Size range from 0.25 inch to 1.5 inches. Size: 6.5 x 11 x .030 inches.