High Quality The drawing template is made of durable plastic, which is not easy to break and lasts for a long time. Circle and Oval Template Measurement templates are designed with different sized circles and ovals, with smooth edges, to make it easier to draw circles and cylinders. Package Contents 3 Pieces Plastice rulers of different sizes, 1 oval template, 1 big circle template, 1 drawing circle template, can meet your different needs. Color The transparent green drawing template provides comfortable vision, to see the exact location of the drawing. lt is very practical to effectively relieve eye discomfort after drawing for a long time. Widely Used Geometric rulers can be used not only for artistic design in schools, offices, homes, but also for architectural templates and drawing templates.