Professional Protractor Triangle

The Professional Protractor Triangle with handle is larger than other navigation triangles on the market with legs that are 9.312 inches long and a hypotenuse (long side) 13.125 inches long. It has both 320mm & 1-80,000 scales and is constructed of heavy duty clear 5 mm thick acrylic for durability with a handle for ease of use. Both pencil and pencil sharpener are included with the Professional Protractor Triangle and this product is backed by our lifetime warranty.