Ellipse templates are available in many styles to suite your drafting needs. Styles include Isometric Ellipse, Master Ellipse, and Giant Ellipse. Precision-engraved apertures ensure single-stroke accuracy. Templates come in a smoke grey color with a matte, non-glare finish. Templates feature ink risers to facilitate clean, smudge-free inking and easy pick up and repositioning. Chartpak templates are scratch-resistant and distortion-free. For best results, use with technical pen or pencil. Ellipses at 20, 30, 40 and 50 projections. Size range 20(1/4" to 1 1/2"), 30(1/4" to 11/4"), 40(1/4" to 11/4") and 50(1/4" to 11/8"). Size: 5" x 11". Thickness: 0.030".