Digital Vernier Mini Vernier Portable Vernier Pocket Keychain Vernier Caliper Measuring Internal and External Diameter Set of 2 Caliper, Caliper,

1. Set includes: 2 mini scale keychains, size: 30mm*105mm, color: bronze + silver, measuring range: approximately 0 ~ 40mm. 2. Made of good quality zinc alloy material, it is sturdy and durable, not easy to break and can be used for a long time. 3. The mini scale keychain is not only a keychain but also a portable measuring tool that can be used for simple measuring tasks. 4. The mini scale keychain has accurate markings, the numbers are clearly visible, and you can easily measure the values. 5.Suitable for jewelry, parts, games and other small items, an ideal choice for DIY measurement. The mini scale keychain is a portable measuring tool.