Electronic Vernier 0-150mm 6Inch Digital Calipers Measuring Tools Features: lightweight and durable, made of strong plastic carbon fiber composites Four way measurement: inside diameter, outside diameter, depth, step Zero setting in any position With large LCD display, easy to read Minimum scale to read is 0.1mm / 0.01 inch An ideal tool for a broad range of industrial and automotive applications Measuring Range: 0 - 150mm / 0 - 6 inch Powered by: 1*cell battery ( included), LR44 / SR44, 1.5V. Material: PA66