Ingooood Digital Calipers 150mm 6 inch LCD Digital Electronic Carbon Fiber Vernier Caliper Gauge Micrometer Ruler plastic micrometer digital vernier caliper in Working Made of strong Plastic carbon fiber composites, lightweight and durable. Two way measurement, internal and external, Linear capacitive measuring system. An ideal tool for a broad range of industrial and automotive applications. Zero setting in any position, with easy to read large LCD display Minimum scale to read is 0.1mm / 0.01 inch.