Extra large circles template

Writing template made from extra resistant butyrate plastic. Especially formulated to eliminate cracks and weaknesses. This template contains 13 circles with diameter sizes ranging from 1 ¼ to 3 1/2. Sizes are indicated in inch, decimal and metric equivalents. Four corner radii are ¾, 7/8, 1 and 1 1/8 inches. All with allowance for pencil point. Size: 11 ½ x 8 ¾ inches