Description: Package Includes2 Pieces of large clear triangle rulers: 45/ 90 degrees and 30/ 60 degreesMaterialThe triangle ruler is made of quality PP, durability and sturdy; a good measuring tool, easy and convenient to useUnique Design Translucent color allows for a clear view of numbers and letters on the page; 2 kinds of measuring units, you can measure an object easilyFeatureThe triangles ruler are easy to grip; The hollow center of 45/ 90 degrees triangle is a protractor and the other is a interesting hollow drawing patternApplicationThe rulers are useful tools for architects, engineers, artists, designers, students, teacher, and so on Specification: Material: PP Size Chart: 25cmx25cmx35cm/9.84inchx9.84inchx13.78inch 35cmx20.5cmx43cm/13.78inchx8.07inchx16.93inch Package Includes: 2 Ruler Note: Please allow slightly errors due to manual measurement and different monitors.