BAZIC 4-Piece Geometry Ruler Combination

Measures 0 to 180 degrees left to right and right to left. Protractors and rulers with inch and centimeter marks make measuring easy to read. Adjustment wheel with automatic locking mechanism. Perfect for precise drawings. Trace and draw the perfect angle, circle, circumferences, graphing, and interior design. Durable, lightweight plastic material. Bright clear color makes you measure easier, and you can see the numbers and letters on-page through the protractor.