These rulers and protractors are designed to enhance for blind students. Featuring raised tactile markings, they offer a reliable way to measure angles and distances accurately. The durable plastic construction ensures use, making them an essential addition to any student's toolkit for geometry and drafting activities. Features -Color:Light Green -Material:Plastic -Size:17.90X8.90X0.20cm/7.03X3.50X0.08in -Accurate learning: specially crafted for blind students to ensure precise measurements, enhancing educational efficiency -Material: high contrast materials enable recognition for accurate angle measurements -Flexible protractor: semicircular design accommodates various geometric tasks, streamlining operations -Durable design: made from materials, suitable for regular use, minimizing replacement frequency -Educational aid: ideal for diverse learning environments, providing robust support for blind education Package list: 1 x protractor ruler