Package ContentIncludes an A3 drawing board, sliding set square with protractor, sliding straightedge with protractor, and rotating square with protractor. MaterialThe portable A3 drawing board is made of high quality PP, lightweight and durable, it is a practical tool for drawing; the size is 50cmx37cm/19.69inchx14.57inch, easy to carry around. FeatureDual rail system is handy for ensuring straight lines, as well as clamping the paper securely in place. The board is marked in centimeters on both edges. DesignThe long straightedge design allows drawing along the top edge of the straight edge down to the bottom of the sheet, with full accuracy and stability. The triangle ruler and angle ruler are all equipped with slots so that they can be moved left and right on the long parallel ruler. Great GiftThis A3 drawing board is a good and necessary tool for engineers, designers, and engineering students to make work faster and easier. Specification: material: PP Size Chart: 50cmx37cm/19.69inchx14.57inch Package Includes: 1 A3 Drawing Board Note: Please allow slightly errors due to manual measurement and different monitors.