25cm Large 180-Degree Plastic Semicircular Protractor for School Stationery

This 25cm large 180-degree plastic semicircular protractor is a practical tool for teaching, drawing and handcrafting. Its 25cm oversized design is ideal for classroom group demonstrations and large-scale drawing measurements. The dual-color laser-engraved scales are clear and accurate with a precision of 1°. The inner ring features counterclockwise scales while the outer ring has clockwise scales, meeting the needs of multi-directional angle measurement. Made of thickened, high-toughness and eco-friendly PP plastic with an integrated molding process, it is shatter-resistant, pressure-resistant and non-deformable. The hollowed-out weight-reducing design ensures a lightweight grip that won’t strain your hand, and the hanging hole reserved at the top allows for easy storage. Widely suitable for scenarios such as math teaching demonstrations, engineering angle measurement and handcraft model lofting, it balances practicality and durability, and serves as a reliable assistant for teachers, designers and handcraft enthusiasts.