Graphic Tablet -Triangle Ruler Protractor Highlights Generic Brand Triangle Ruler Protractor Description: 45/90 degree and 30/60 degree rulers also include a protractor inside Manufactured made of durable, high quality, sturdy clear plastic Identification ruler cutouts and scales printed in easy to read black ink. Center protractor cutout for easy finger lifting and accurate angle measurement Right angle rulers are useful tools for architects, engineers, artists, designers, students, teachers, etc. specification: Material: plastic Size: about 40x20cm/15.7x7.8inch, 34x25cm/13.4x9.8inch Package includes: 2 pcs triangle rulers Note: Please allow a little size error due to manual measurement. Please note that due to lighting effects and monitor's brightness/contrast settings etc, the item's color may be slightly different from the pictures. Try to understand.