Stanless Steel 6-Inch 150mm Digital Caliper with Extra-Large LCD Screen and Instant SAE-Metric Conversion Easy to read LCD display and durable stainless steel construction One button to switch between inches to mm, zero calibration switch for convenient operation Features with a large LCD display, easy to take readings Adjustable thumbscrew provides tension for optimal movement of the slide and locks Take measurements from 0 to 6-inches