Fairgate 8" aluminum drafting triangle. These lightweight, durable 30/60/90 drawing triangles feature a matte-satin finish that resists stains and tarnishing. These quality aluminum triangles feature 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 home, office, studio, shop. Made in the USA.