Rugged professional-quality scales are made from anodized aluminum with a solid core. Printed black graduations on non-glare finish and color-coded furrows. Available in English and metric. Sold individually shrink-wrapped. All architect scales have the following graduations unless otherwise noted: 3/32 3/16 1/8 1/4 1/2 1 3/8 3/4 1½ 3? to the foot; one edge to 16ths.