Fairgate 6" aluminum drafting triangle. These lightweight, durable 45/90 triangles feature a matte-satin finish that resists stains and tarnishing and 1/16" graduations on the 90-degree angle. May also be used as a template for circles from 1/16" to 1-3/8". Perfect for the home, office, studio, or shop. Fairgate 6" aluminum triangles are made in the USA.