Marine Chandlery
Marine supplies and accessories for both power boating and sailing.Boating Accessories
Trailer accessories, life vests, fuel tanks, lubricants, anchors etcWeems & Plath Marine Navigation Bi-Rola Rule (18-Inch)
Made with the professional in mind, the P.R. 500 has a considerably larger body than the smaller bi-rola rule. Built to take rigorous use aboard commercial and blue water vessels, the P.R. 500 provides one of the easiest methods invented for plotting cour
Features
- Patented four-way rolling motion
- Roller body has protractor markings every 1/2 degree
- 1-1/4″ magnifying lens for enhancing chart data
- Easy to follow instructions
- Packaged in a protective, durable vinyl pouch
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