Mathematically correct, symmetrical ellipses are smooth, exact, die cut. Set of 4 templates include 100 ellipses: 15°, 30°, 45° and 60°. Convenient tab on top indicates projection for each template. Has permanent, accurate pin-point centering for both axes of all ellipses. You can mark the center of the ellipse drawn. This set complements T91, T991 and the T93 sets.