Navigational Protractor 5"

Sometimes referred to as a Douglas protractor, the Square Protractor is best suited for rapid plotting of courses and bearings in a confined space. Notations can be easily made directly on matte plastic surface with pencil. Constructed of durable, transparent plastic with instructions included. Lifetime Guarantee. Weight: 0.13 lb. (59 g) Dimensions: 5" square (127 mm)