This roller-ruler is cooler than your regular ruler! - Yanko Design
Ruler Roller Professional - Leniar - 35 cm
Amazon.com: Rolling Ruler Plastic Parallel Rolling Ruler, Multifunctional Drawing Design Ruler for Measuring Drafting Student School and Office, 12 Inch (1) : Office Products
Ruler and roller set, plastic and stainless steel, silver and grey, 6-1/4 x 1-inch hexagon roller and 6-inch ruler. Sold per set. - Fire Mountain Gems and Beads
Rolling Ruler - 30cm – PenmanDirect
Amazon.com : ALVIN Rolling Parallel Ruler, Multipurpose Ruler Balancing Scale, Drafting and Architecture Drawing Tool, Great for Students and Professionals 12 inches : Rolling Parallel Rule : Office Products
1 Pcs Plastic Rolling Ruler, Clear Multi-Purpose Parallel Rolling Ruler and Protractor Drawing Ruler | Fruugo ES
Isomars Rolling Ruler 30cm
Betterlifefg-30cm Rolling Parallel Ruler Professional Parallel Roller Ruler Multipurpose Scale Drafting Ruler Protractor Compass For Vertical Parallel | Fruugo ES
Archivo:Rolling parallel ruler.jpg - Wikipedia, la enciclopedia libre