Features:【High Quality Standard】 - Our 6'' Digital Caliper is depth-measured probe, knurled thumb roller and locking screw ensure smooth sliding and accurate positioning in use. It can be used to measure inside and outside diameter, depth and step with 2 sets of jaws.【Inch/ Millimeter Conversion】 - One button quickly changes between two measuring modes: inch, millimeter, you can measure the internal, external dimensions, diameters, depth and steps with just one measuring tool.【Precision/Accuracy & Durable Material】 - Measurement Range: 0 – 6in and 0 - 150mm; Resolution: 0.00393in / 0.01cm; Accuracy: ±0.2mm. It can be zero at any point for differential measuring, easy to operate for the professionals and hobbyists. glides easily without sticking.【Extra Convenience】 - IP54 Waterproof: Splash water, oil, dust resistant; battery and package box for backup and easy carry; Large and clear LCD display ensures an easy reading; auto off within 5mins without operation. There is a protective film on the LCD screen to protect the screen from being worn. Please Tear It Off before using.Specification:Name: DigitalPlastic CaliperResolution: 0.00393in/0.01cmAccuracy: ±0.2mmsize:237 x 77mmColor: SilverQuantity: 1PCMaterial: plasticPackage Included:1PC*Digital CaliperKindly Tip: 1. Conversion: 1 inch= 2.54cm Size Approximately : These size is about Asian Size,general get one size smaller than US/EU size,Please reference to the size chart in the picture. Item Measure by hand, it could be 0-1cm different. hope you can understanding, will be sincerely appreciated.2 .Please be reminded that due lighting effects, monitor's brightness/ contrast settings etc, there could be some slight differences