Digital Jewelry Measuring Gauge 0.01mm Antique Pearl Ring Measuring Instrument

Measurement Range: 0-25mm
Resolution: 0.01mm
Applications: Inner Diameter/Spherical Diameter/Outer Diameter Measurement
Scale Body Material: 4CR13 Stainless Steel
Button Functions: Metric/Imperial Conversion/One-Touch Zero Reset
Product Packaging: Plastic Box Packaging