Feature: The product is made of carbon steel. The surface is chrome plated. It has good corrosion resistance and is not easy to rust. The whole product is quenched and it has good wear resistance. The product can measure the inner diameter of the object accurately. The scale of ruler is carved by precise laser. The scale is clear and easy to read data. The product is compact, portable and suitable for outdoor operation. Specification: Material: Carbon steel Display mode: Vernier reading Measurement range: 0-150mm / 0-5.9in Reading value: 0.02mm Weight: 396g / 14.0oz Package list: 1 * Vernier Caliper Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.