Features Good Material The high strength caliper made of high quality carbon steel is very durable for long-term use. Convenient Use The vernier caliper allows wide application when measuring jewelry, repairing guitar strings, etc., practical and reliable. For Measuring This caliper is designed for high resolution up to 0.02mm, the caliper allows easy operation and high accuracy. Easier Work Our vernier for woodworking can be used to measure the inner diameter and outer diameter, depth, length, etc., to meet your needs. EASY CARRYING Comes with a light weight and compact size, both storage and carrying are very easy for outdoor use. Specification: Item Type:Vernier Caliper Product material: carbon steel Resolution: 0.02 mm. Measuring range: approx. 0 ~ 150 mm / 0 ~ 5.91 inches. Package list: 1 x caliper. Package List 1 x Vernier Caliper