1Stainless Steel: This digital caliper is made of high strength stainless steel and features a fully metallic structure to ensure a longer service life, making it suitable for industrial use and various harsh environments 2Accurate and Practical: This digital vernier caliper has an IP54 protecting level, water, dust, and oil resistance; Jaw alignment with accurate cutting ensures smoother sliding and accurate measurement 3Multiple Functions: This electronic vernier caliper has four measurement types: outer diameter, inner diameter, depth, and step length; With zero point function, it is ideal for differential measurement 4Convenient to Use: This stainless steel caliper is simple to use, just press a key to switch between in and mm; Thumb roller and locking screw provide easy sliding, accurate locating, and fine tuning 5LCD Screen: This digital caliper provides an LCD display screen and clear and accurate scale values, making it easy to read even in strong sunlight; It will automatically shut down after 5 minutes of inactivity to save power 1 x Digital Caliper 1 x Storage Box