Weems & Plath Weems & Plath 20in 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 (155).
Built to take rigorous use aboard commercial and blue water
vessels, this rolling plotter provides one of the easiest methods
invented to plot courses.

Features:

• Patented 4-way rolling motion
• Roller body includes protractor markings every 1/2 degree
• 1-1/4 inch (31.75mm) magnifying lens for enhancing chart
  data
• Easy to follow instructions
• Packaged in protective, durable vinyl pouch
• Durable transparent plastic and brass construction
• Made in New Zealand
• Lifetime warranty

NSN:  6605-01-556-9401

Specifications:

• Dimensions: 19-5/8′ x 3-5/8′ x 1-1/4′ (499 x 92 x 32 mm)
• Weight: 1.625 lbs. (737 g)
• UPC Code: 721002002204
• HTS Code: 9017.20.7000
• NSN: 6605-01-556-9401