Durable triangular plastic ruler designed for geometry, drawing, and measuring tasks. Built from robust materials for long term use, it reduces the need for frequent replacements and stands up to everyday classroom and drafting use. Key benefits Long lasting construction: sturdy plastic and reinforced triangular profile provide stability and durability for repeated use. visibility: contrast colors make the ruler easier to locate and identify, helpful in teaching settings and for users with low vision. Tactile accessibility: raised tactile markings let users identify angles and measurements by touch, supporting accessible education and multisensory learning. Multifunctional: works as a geometric ruler, drawing measuring ruler, and triangular ruler for a range of classroom and drafting tasks. Practical compatibility: designed to integrate with standard school and drawing supplies; lightweight and easy to handle. Features and attributes Material: durable plastic for strength and low weight. Shape: triangular profile adds rigidity and stable edges for accurate drawing. Markings: raised tactile scales for touch identification and clear contrast printed marks for visual reading. Performance: built to withstand regular classroom or workshop use while maintaining clear, readable markings. Use scenarios Classroom geometry lessons: teachers can use the ruler for drawing straight lines, measuring angles, and teaching measurement concepts to groups that include low vision learners. Accessible learning activities: tactile markings support blind and low vision students in identifying angles and measurements independently during tactile math or technical drawing exercises. Drafting and sketching: the triangular profile provides a steady edge for technical sketches, diagrams, and routine measuring tasks in studios and workshops. This ruler combines durable construction, accessible tactile features, and contrast markings to deliver a reliable tool for teaching, drafting, and inclusive learning environments.