[Dual Scales&Accurate Measurements]- No need to second-guess or manually convert units-this pocket caliper features both millimeter and inch scales, giving you precise readings instantly. Perfect for speeding up your work and reducing costly errors, whether you're a professional jeweler or a DIY enthusiast. [Built to Last with Premium Brass]- Say goodbye to flimsy plastic tools! Made from solid, non-magnetic brass, this brass caliper is resistant to rust, distortion, and wear. Its durable construction ensures it stands up to daily use, delivering consistent performance you can rely on. [ Lightweight & Compact & Portable] - Don't let heavy tools slow you down. At just 4.6 inches long, this pocket-sized caliper is easy to carry and store, making it ideal for on-the-go artisans or field professionals who need precision at their fingertips. [Versatile Tool for Small, Delicate Objects]- Struggling with tools that can't handle intricate measurements? This pocket ruler is designed to accurately measure the inside and outside diameters of small objects like beads, gems, and rings. It's the ultimate solution for precise crafting and jewelry-making needs. Colour:Gold Material:copper Package Contents: 2PCS x Pocket Caliper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.