Product: Plastic Vernier Caliper — 0–150 mm Why you need this caliper Accurate, repeatable measurements for small parts: ideal for jewelers and other professionals who work with precise, small-scale items. Simple, fast measuring without heavy tools: lightweight plastic construction makes the tool easy to handle and carry. Measures both inside and outside dimensions so you can complete common tasks without switching instruments. Key features and benefits Measurement range: 0–150 mm — covers typical sizes for gems, rings, small mechanical parts and craft components. Dual-scale design: metric scale graduated in centimeters for clear, easy reading. Vernier (Nonius) scale: lets you read fine differences and measure both internal and external dimensions accurately. Plastic construction: light and easy to operate; suitable for repeated use without excessive hand force. Smooth operation: slides and jaws designed for effortless positioning to speed up routine measuring tasks. Practical applications Jewelry: measure gemstone widths, bead diameters, and ring outer dimensions during inspection and assembly. Watchmaking and small mechanics: check external parts and internal clearances of small components without bulky equipment. Hobby and model building: accurate sizing for parts, fittings, and custom assemblies. What it delivers A compact, professional-grade tool for precise external and internal measurements up to 150 mm. Clear centimeter markings and a vernier scale for reliable readings. Lightweight, easy-to-use design that integrates into workshop, bench, or portable tool kits. Specifications Type: Vernier caliper (plastic) Material: Plastic Measurement range: up to 150 mm Scale: Metric (centimeter markings) with vernier for fine readings Functions: External and internal measurement Simple to use, portable, and suited to professional tasks that require careful, repeatable measurement.