Alvin ROLLING RULER-6

The Alvin & Co Rolling Parallel Ruler is a multi-purpose drawing tool made from high-impact plastic. It is perfect for students, artists, and designers.

• Graduated in both inch and metric scales
• Includes many useful formulas and conversion factors
• Draw horizontal and vertical parallel lines with ease
• Draw circles, curves, or arcs
• Use the built-in protractor to draw angles
• Includes instructions
• 6”