Helix

S632. Protractor. 6-inch 180 degree Protractor. While protractors are designed for drawing and mesauring angles in mathematics, these tools are also useful for a variety of artistic techniques...

S1085. Angle and Circle Maker. This two-in-one protractor and compass draws circles like a compass and angles like a protractor! The interior disc rotates, making this tool easy to use to create...