Plastic verniers are relatively easy to construct, allowing you to measure outer diameter, inner diameter and depth up to 5.9 inches (15 cm). Made of plastic, lightweight and easy to carry. Made of plastic to resist rust and last a long time. This plastic vernier is suitable for a variety of applications that require measuring dimensions and depth. For example, industrial production, machine manufacturing, beauty industry, electronic maintenance etc. The knockbacks are simple, lightweight, portable and easy to use. It has high precision measuring and is rust resistant and inexpensive, so it can be used with a variety of measuring tools. It can also be used for general household needs. Leggis, Compact, Leggis, Digital Leggis, Compact, 150MM, Digital Leggis, Verdigis 5.9 inches (150MM), Digital Leggis