Large Triangle Ruler Square Set,Triangle Protractor,2 pieces

Specifications: Material:made of plastic Digital clear, help fast accurate measurement 45/90-degree ruler can also be used as a protractor One of the commonly used mathematical tools,it can not only use by ourself,but also sent to our students,friends Size: 45/90-degree Triangle ruler,the shortest side 5.5inch, the longest side 7.8inch 30/60-degree Triangle ruler,the shortest side 4.5inch, the longest side 9inch Package includes: 1 x triangule ruler(45/90-degree) 1 x triangule ruler(30/60-degree)