Specifications: Material: plastic Color: clear green Drawings templates Quantity: 11 pieces Length: from 17.8 to 25 cm Width: from 9.4 to 14.7 cm Measurement: adopt metric system, use centimeter as scale unit Poly zipper envelopes Length: 33.5cm Width: 24cm Package include: 1 * Curve template 1 * Network technique template 1 * Geometric drawing template 1 * Mechanical template 1 * Nut template 1 * Building template 1 * Mathematics learning template 1 * Circular template 1 * Multifunctional drawing template 1 * Ellipse template 1 * Orthodrome template 1 * Poly zipper envelopes Various shapes: Using these rulers, you can paint geometric patterns like different sizes of circle, ellipse, square, which are handy drawing helpers. Main applications: They work well in architecture, network technique, fractional measurement, art design or as drawing templates for school learning.