High Quality Compass Set Painting Design Drawing Tools Math Teaching Aids

The student test ruler set has 8 sets of drawings, one set contains the tools required for the test drawing to help the examination room play. Transparent material, clear scale, more intuitive and accurate reading data, easy to complete measurement and drawing. The material is durable and not easy to be damaged. The design of anti-slip grip, pressing lead, and stable coarse pin let you draw smoothly.