Combining traditional craftsmanship with modern educational needs, this teaching ruler functions as both precisions measuring instrument and sustainable classroom accessory that withstands rigorous academic environments Specifically for educators across all levels, this multipurpose tool serves both academic professional requiring geometry demonstrations and instructors managing classroom discipline for mathematics lectures requiring diagram creation, engineering blueprints reviews, and daily classroom management scenarios where clear measurement standards and authority symbols matter The surfaces features etched measurement markings for accurate calculations, paired with ergonomic rounded edgeds that ensures slip resistant grip during prolonged teaching From, this teacher ruler wear resistance and friendly reliability, solving common breakage issues while maintaining measurement precisions for extended classroom applications, Manufacturer: YanFengPro