Features: Achieve precise measurements with this compact digital gemstones gauge, featuring a 0~15mm ranges and 0.01mm resolution for accurate gemstones and jewelry thickness gauging, ideal for high accuracy tasks. Designed for convenience, it includes mm/inch unit conversion, 0 setting capability, and a lightweight ABS body that enhances portability and durability while enabling easy 1 handed operations. Perfect for professional like jewelers, lab technicians, and manufacturing workers who require efficient dimensional accuracy in their daily workflows for quality controls. Use in various settings such as automotive workshops, factories, or research labs to measure thickness of materials like metal, plastic, and rubber, ensuring consistent product standards. Its robust construction and pocket sized design make it an essential tool for efficient on site measurements, providing long time performances in demanding industrial environments. Specifications: Materials: ABS, Alloy Size:Approx. 10.18x5.1cm/4x2inches Type: GH4492B Square Digital Thickness Gauges Package Includes: 1Pc Miniature Digital Thickness Gauges note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.