Accurate Measurement: Plastic calipers measuring tool have a large enough range, high accuracy, and clear markings. The measuring range is 0-80 mm (0-3 inches). Two readings, cm, and inches for easy reading. High-Quality MaterialThese calipers measuring tool are made of high-quality ABS plastic, lightweight, and comfortable to hold, so you won't get tiRed after long working hours. No Batteries RequiRed: The long-lasting Vernier calipers always work and you will never have to shut down due to a dead battery like with digital calipers. Convenient to Push and Pull: The button of the push-pull vernier caliper is well made, convenient to push and pull, not easy to slip or jam, accurate measurement, and convenient and fast. The professional vernier caliper is made of all plastic materials, which is suitable for the measurement of precious articles, jewelry, jade, etc., and will not scratch the object under test. Wide Use: Our measuring calipers can measure inside diameter, outside diameter, depth, and steps. Perfect for the home, carpenters, mechanics, plumbers, jewelers, home DIY enthusiasts, and even professional practitioners. A great tool for measuring dimensions.