Weems & Plath #101 Protractor Triangle with Handle

7 3/4 " sides x 11 " (19.69 cm x 27.94 cm) hypotenuse Inscribed with contrast enhancing colors (black & red), black handle with pencil holder for easy maneuverability Used as a pair to transfer a directional line on a chart, protractor scale allows easy alignment with chart meridian in any direction Direction is maintained as one triangle is slid along the other to desired position, 90 degree angle helps determine lines of position International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.