Alumicolor 6" Architect Pocket Scale Measure and interpret architectural drawings with this compact 6-inch triangular architect scale . Made from extruded aluminum with permanently photo-anodized calibrations, its lightweight, pen-sized design provides a durable and portable measuring tool for architects, designers, contractors and students. Key Features 6" triangular pocket scale provides a compact, lightweight tool for architectural drawings and plans. Features architect calibrations of 16, 1/8, 1/4, 1/2, 1, 3/8, 3/4, 3, 1-1/2, 3/32 and 3/16. Extruded aluminum construction with smooth edges provides lightweight durability for everyday use. Photo-anodized calibrations become part of the aluminum surface for markings that resist wear over time.