Plastic Teaching tools 1.Triangle draft tools for teacher 2.OEM is welcomed 3.different sets can make 3.Meet EN71,ASTM Plastic teaching tools in triangle for teacher draft usingTriangle teaching draft toolsEducational instruments 1.Plastic educational instruments, teaching tools .2.Details:triangle set, 180 degree protractor ,both 50cm length ,thickness:0.7cm3.With handle to hold ,easy to use4. ...