3.[Multifunctional Use]: The digital micrometer can easily and accurately measure internal, external, height and depth dimensions. 1.[Stainless Steel Material]: The vernier caliper is made of high-strength stainless steel, which is waterproof, stain-proof and oil-proof. The ergonomic design brings you a comfortable feeling. 2.[Large and Clear Display Screen]: display gives you a clear reading. The thumb rolling and locking screw provide easy sliding, accurate positioning, and fine adjustment. 4.[Easy to Use]: Durable and long-lasting manual caliper with smooth slide, no grittiness. It's convenient to use with one hand without any extra support. Instant reading you will get. 5.If you encounter any problems, please contact us immediately.