This compact size and easy-to-use make it perfect for measuring the inner or outer diameter of wooden beads, glass beads, rings, gemstones, jewelry, and other items. The shiny and vintage appearance long-lasting service. Features -Color:Golden -Material:Copper -Size:9.50X3.80X0.30cm/3.73X1.49X0.12in -This measuring tool features a dual scale design in both millimeters and inches, ensuring accurate measurements for a variety of jewelry and bead projects. -With its versatile design, this tool is perfect for measuring ring sizes, gemstones, and other small items with precision and ease. -Made from solid material, this measuring tool is and sturdy, ensuring it can withstand frequent use and handling. -Its compact and portable size makes it easy to store and carry, making it a convenient tool for on-the-go jewelry making and repair. -The stylish and vintage look of this measuring tool adds of sophistication to any workbench, making it a must-have for any jewelry maker or enthusiast. Package list: 1 x caliper