Helix Large Circles (10) Plastic Template

10 circles and 4 radii Circle sizes: 1-1/2", 1-3/4", 1-7/8", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/4", 3-1/2" Radius sizes: 1/2", 5/8", 3/4", 1" Fractional inches with decimal inches and mm equivalents Ink risers on reverse side prevent smudging when using ink pen Centering lines are printed around cut-outs Designed for use with 0.5mm lead Made from dimensionally stable .03" green transparent shatter resistant plastic Dimensions: 6-3/4" x 13-1/4"