Helix Sketch Master Template 12 each equilateral triangles, hexagons, squares, and circles (48 shapes total) in 1/32-Inch increments from 3/32-Inch to 1/2-Inch Designed for use with a 0.5mm lead or pen tip Ink risers on reverse side prevent smudging when using inking pen Includes 5" scales in 1/32" and 1/10" Made from dimensionally stable .03-Inch green transparent shatter-resistant plastic. Overall size 3 1/2-Inch x 5 7/8-Inch