Description: 【Precision】: Accurately measures from 0 to 50mm, making it suitable for both internal and external diameter measurements with fine tuned results 【Premium Material】: Crafted from quality zinc aluminum alloy with a vintage bronze finish, this tool combines classic charm with long time strength 【Versatility】: Ideal for outdoor enthusiasts, campers, and hikers—handle camping tasks, unfold packages , adjust gear screws, or make quick repairs during road trips and backyard activities 【Convenience】: Smooth sliding action ensures easy handed operation without any grittiness; get instant readings without the need for extra support 【Multi Functionality】: Suitable for measuring jewelry, small objects, mechanical parts, or assessing space requirements—an adaptable and reliable measuring tool across various fields Specification: Material: Zinc Aluminum Alloy Size Chart: 7.7cmx4cmx1.2cm/3.03inchx1.57inchx0.47inch Package Includes: 1 Mini Vernier Caliper Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.