High-quality black anodized aluminum scales have a large profile hollow core and tapered edges. Printed white graduations and color inlaid furrows. Supplied in hard plastic case. 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.