Weems & Plath 220 18" Bi-Rola Rule

Weems & Plath 220 18" Bi-Rola Rule

Made with the professional in mind, the P.R. 500 Rolling Plotter has a considerably larger body than the smaller Bi-Rola Rule. Built to take rigorous use aboard commercial and blue water vessels, this rolling plotter provides one of the easiest methods invented to plot courses.

•Patented four-way rolling motion
•Roller body has protractor markings every 1/2 degree
•1-1/4 inch magnifying lens for enhancing chart data
•Easy to follow instructions •Packaged in protective, durable vinyl pouch