Clear Plastic Mathematics Metric Ruler 35 Circle Shapes Drawing Drafting Template Stencil Professional one of the auxiliary tools for drawing design. It is used in cartographic aids that require multiple large and small circles. The size ranges from 1 to 31 circle templates and 4 angle templates, and the angles include 30, 45, and 60 degrees. It also contains a ruler. Dimensions: 10.2x5.4in, thickness: 0.08in. Made of transparent plastic. This tool helps to design painting, homework, children's drawings and more.