Jeppesen Plotters -- the most accurate way to get there and back. Choose from Navigaton plotters, Enroute plotters, Rotating Azimuths and others. The classic opaque background allows easy identification of WAC and Sectional chart scales. The laminated design protects visibility of printed scales for years to come. The dual scales are calibrated in statute and nautical miles. Size: 12-1/4 x 4 inches.