18" Bi-Rola Rule

Designed with professionals in mind, the Bi-Rola 18 has a body that is considerably larger than the smallest Bi-Rola ruler. Built for rigorous use aboard commercial vessels, this tracer provides one of the easiest ways to create routes.

• Patented four-way rolling movement
• The roll body has protractor marks every 1/2 degree
• 1-1 / 4 inch magnifying lens to improve graph data
• Easy to follow instructions
• Packaged in a durable vinyl protective pouch

Size: 19-5 / 8 "x 3-5 / 8" x 1-1 / 4 "(499 x 92 x 32 mm)