Fairgate 10" aluminum triangle. These lightweight, durable aluminum 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 45/90 triangle for the home, office, studio, or shop. Fairgate 10" aluminum triangles are made in the USA.