Specifications: Units: mm/in/F Resolution: 0.1mm/0.01inch Measuring Range: 0 - 150mm / 0 - 6 inch Material: steel and plastic Size: 235*78mm Color: silver & black Features: Made of strong plastic carbon fiber composites, lightweight and durable. Four way measurement: inside diameter, outside diameter, depth, step. Zero setting in any position. With large LCD display, easy to read. An ideal tool for a broad range of industrial and automotive applications.