Made of flexible, durable 0.03" transparent green plastic with a matte finish on one side to reduce glare, this template includes 60 ellipses from 1/4" to 2-1/2" in projections of 25 , 35 , 45 , and 60 . It includes fractional and decimal inch markings plus metric equivalents, centering lines for precision placement and built-in ink risers for smear-free drawing in pen or pencil. The allowance on all openings is designed for use with .5mm pencil lead or pen point.