[Material]This metric ruler is made of stainless steel, with clear scales, not easy to bend, and has a long service life. [2 Scale Units]This metal pocket ruler has 2 scale units, they are inches and millimeters, which are convenient for machinists' daily use. [Package Included]This machinist ruler set includes 3 pieces of 6-inch (15cm) stainless steel rulers, enough for your daily use. [With Detachable Clip]This metal slider ruler is designed with a detachable clip for convenient vertical, depth or height measurements. [Wide Application]This 6-inch ruler can be used as a drafting ruler or measuring tool and is widely used in offices, homes, drawings, engineering and other tasks., Weight: 0.06393405598 Pounds, Manufacturer: Kueohse