Crafted to support the needs of blind individuals, these learning tools include a variety of rulers and protractors with distinct tactile elements. The ergonomic design facilitates comfortable handling, while the clear tactile markings ensure accurate readings. Suitable for both classroom and home use, these tools empower blind students to excel in mathematical and drafting tasks. Features -Color:Light Green -Material:Plastic -Size:17.90X8.90X0.20cm/7.03X3.50X0.08in -Precision measurement: designed for blind students to achieve accurate measurements, improving learning efficiency -Easy identification: high contrast materials facilitate tactile recognition, ensuring precise angle measurements -Geometric versatility: semicircular protractor addresses multiple geometric tasks, simplifying processes -Robust construction: durable and wear resistant, ideal for frequent use, reducing the need for replacements -Comprehensive support: for schools and homes, offering strong support for blind education Package list: 1 x protractor ruler