Inch & Metric Map Measuring Wheel Measures Distance in Inches & Centimeters

This plan wheel is for measuring distances on roads, curves, contours, maps, patterns, and drawings. The dial registers inches, half-inches, and centimeters up to 39" and 99cm, plus measures statute and nautical miles. It has Multiples for feet, yards, or miles. The Alvin two face map & plan wheel has a bright, nickel-plated finish with convenient handle and clear, unbreakable plastic lenses.