The 15-inch (38.1cm) Brass Parallel Rule is assembled with high-quality solid brass arms and handles, adding a bit of traditional elegance to a classic navigation tool. The sturdy acrylic parallel rules are inscribed with a protractor scale and are a reliable way to plot a course by walking the rules across a chart.

• 15-inches (38.1cm) long 
• Includes protractor scale 
• Solid brass arms and handle
• Milled acrylic with beveled edges 
• Protective plastic sleeve

Length: 15 in (38.1 cm)

Width: 3 in (7.62 cm)

Height: 0.5 in (1.27 cm)

Weight: 0.4 lb (181 g)