These general, all-purpose slide calipers can make quick, accurate, inside and outside diameter measurements. Ideal for measuring rod diameters, plate thickness, inside and outside of tubing. Metric and inch scales (capacity 6 1/8" / 160mm). Features all plastic construction with metric scale on the top of the caliper and inch scale on the bottom. Available in black, white, and translucent red, green, yellow, and blue. Individually polybagged.