The 360° Angle and Circle Maker combines three Geometry tools into one innovative and exciting product! The 6" diameter outer ring acts as a classic protractor, while the separate inner circle easily rotates to draw circles just like a compass. Eight integrated circle templates built into the inner ring are for drawing accurate small circles far easier than using a standard compass. Unique product is much easier for young children to manipulate and use than a standard compass, and the integrated design means that they can more easily understand how angles and measurements correspond with each other. The perfect tool for young students working on mastering geometry and angles. Degree Graduations: 1°; Material(s): Plastic; Ruler Size: 2" Ruler Edge; Color(s): Blue; Gray; Teal.