This course triangle is a modern navigation triangle for boating and aviation. Ideal for the boat license card tasks and practical use at sea to enter a course into the card. The medium navigation triangle is made of shatterproof plastic. - Dimensions: 27.3 cm (base length) - Material: high-quality, shatter-proof plastic (crystal clear) - Handle strip; hanging hole - Flattened side for course entry, raised corners for easy parallel movement - Numerous spacer knobs for easy movement and protection of the card - Two-tone embossing: degree scale (0° to 359°), line scale (11, 25°-part ung), length measurement scale - zero point outside