Features: From bamboos, this teacher ruler offer wear resistance and friendly reliability, solving common plastic breakage issues while maintaining measurement precisions for extended classroom applications. The bamboos surfaces features etched measurement markings for accurate calculations, paired with ergonomic rounded edgeds that ensures slip resistant grip during prolonged teaching. Specifically for educators across all levels, this multipurpose tool serves both academic professional requiring precise 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. Combining traditional craftsmanship with modern educational needs, this bamboos teaching ruler functions as both precisions measuring instrument and sustainable classroom accessory that withstands rigorous academic environments. Specifications: Materials: bamboos and wood Size: 50×3×0.7cm Styles:Analects, rules for disciples, advice on learning, Three Character, Hundred Family Surnames(optional) Package Includes: 1PC Teaching Ruler note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.