1. MATH MAKES MAKEUP This protractor and set has been carefully designed for all levels and developed by experienced math experts, covering math needs from basic to advanced. This versatile math tool is ideal for teachers and students and is made from quality materials so math is manageable. 2. ULTIMATE DURABILITY Thanks to its reinforced construction, this protractor and compass set is durable. With its flexible ruler for precise measurements and storage, it is designed to withstand wear and tear. 3. Practical tool for multiple purposes: this versatile professional tool is for use at school, office or home and ensures easy storage with its sturdy, shatterproof iron box. 4. Convenient Use Our protractor and set features ergonomic design and quality metal, ruler and triangle ruler with clear markings, making it easy to identify and use a tool for teachers and students.