Includes case Pocket Thickness Gages w/thumb slide for tight spaces Features Can easily be adjusted to zero by turning the dial bezel. Frame of light, rust resistant aluminum. Measuring faces hardened, ground, lapped for accuracy. Spindle: hardened stainless steel. Length 2.5"; height 1.9"; thickness .535". Contact is flat with a .230"/6mm diameter Under two ounces and fits in a shirt pocket. Fraction to metric conversion chart on rear of unit.Fowler