The Multi-purpose Rolling Ruler is your all-in-one tool. Works as a parallel ruler, metric or inches ruler, protractor, triangle, compass, zigzag
Pacific Arc, Stainless Steel Ruler with Inch/Metric Conversion Table
Midori Multi-Angle Ruler - John Neal Books
Pacific Arc Multipurpose Rolling Ruler - 6 and 12
ALVIN Rolling Parallel Ruler, 12 Inch, Model 312, Multipurpose Imperial and Metric Rolling Ruler for Students, Artists, and Designers, Ideal for Drawing Parallel Lines, Curves and Arcs - 12 inches
Alvin 14 Professional Parallel Glider - 296
Pacific Arc Stainless Steel 6 Inch Metal Ruler Non-Slip Cork Back, with Inch and Metric Graduations : Tools & Home Improvement
Westcott See Through 6-Inch Acrylic Ruler, Clear (10561)
This 12 rolling ruler makes it easy to draw horizontal parallel lines by drawing a line along straight edge and rolling ruler downward to desired space to repeat drawing line. Circles up to 24 diameter can be made by rolling the ruler in an arc. Great for drawing angles and crosshatching.
Westcott 12 Rolling Ruler, Clear (ROL-12)
Portable Parallel Roll Ruler Foot Angle Rule Rolling Rulers for Students
Westcott See Through 6-Inch Acrylic Ruler, Clear (10561)
Pacific Arc Rolling Ruler 6 Inches Parallel 6 for sale online
Westcott See Through 6-Inch Acrylic Ruler, Clear (10561)
Alvin Rolling Parallel Ruler – 12″ (312)
Rolling Ruler Plastic Parallel Rolling Ruler, India