Art Alternatives Professional Isometric Ellipse Template. This ellipses template is ideal for designers and artists for maintaining consistent, accurate shapes throughout your design process. Made of flexible, durable 0.03" transparent green plastic, this template features ellipses from 1/8" to 2" in projections of 35° with the isometric diameters measured through the 30° diagonal. It includes fractional and decimal inch markings plus metric equivalents, centering lines for precision placement. Designed to work best with a .5mm pencil lead or pen point. Use for typography, architectural drafting, pattern creation and more.