Weems and Plath 18 inch Bi-Rola Ruler
The Weems & Plath 18 inch Bi-Rola Ruler was designed with the professional in mind.
Built to take the rigorous use to be expected on-board commercial and blue water vessels, the 18 inch Bi-Rola Ruler provides one of the easiest methods invented to date of plotting courses.
- Patented four-way rolling motion
- Roller body has protractor markings every 1/2°
- 1 1/4-inch magnifying lens for enhancing chart data
- Easy-to-follow instructions
- Packaged in protective, durable vinyl pouch
- Size: 19 5/8 x 3 5/8 x 1 1/4 inches (499 x 92 x 32 mm)
- Weight: 1.625 lb (737 g)
Weems and Plath 18 inch Bi-Rola Ruler
Unavailable