Circles in 1/64" increments from 1/16" to 1-3/8". 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: 4" x 7-1/4".