Staedtler® Stainless Steel Ruler12in, 18in, 24in length are availableStainless steel imperial/metric ruler is ideal for measuring, cutting and ruling. Nonslip cork backing on all except the 6" ruler provides traction and lifts blade for smudge-free inking. Ruler provides precision calibrations on one side only, with inches on top edge and metric millimeters on bottom edge. Stainless steel ruler comes with a protective plastic sleeve.Extra-strong stainless steel ruler can be used to cut paperIdeal for measuring, cutting and rulingHigh-quality, hardened stainless steel has acid-etched, color-coded graduationsCork backing prevents slippingAlso raises ruler from work surface to eliminate ink smearing and bleedingCalibrated on 2 edges with inches and millimetersInch calibrations include 16ths, 32nds and 64ths and the metric calibrations include 0.5mm, 1mm and “0”