Features: This vernier caliper allows you gets the accurate data by using internal, external, step and depth measurements in inches and millimeters. Designed for home, DIY and professional using, this tool is so simple but incredibly precise that childs can use it too. Ergonomically design provides a comfortable grab in the hand and features a large LCD display. The measuring faces adjust with a machine-grooved, knurled thumb roller that provides an easy gliding-, accurate position lock for a sure adjustment. Instant conversion between readings eliminates the headache of doing your own math. The vernier caliper is made of high-strength stainless steel and is waterproof and dirt-proof. The service life of this stainless steel digital caliper is longer than that of calipers with plastic or carbon-fiber parts. The digital caliper has a large, easy-to-read LCD display which is easy to use and read even under strong sunlight. Specifications: Material:Zinc Alloy Length:Approx.23.5cm/9.25inch Package Includes: 1x Digital Caliper note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.