Product Name: High-Quality Stainless Steel Digital Caliper Product Size: 245X90X22 mm Package Quantity: 50PCS Material Composition: Alloy measuring head, stainless steel ruler Product Specifications: 0-150MM, 0-200mm, 0-300mm Resolution: 0.01MM Error: ±0.01MM - ±0.02MM Product Accessories: 1 x Plastic box, 1 x Metal caliper, 2 x LR44 batteries, 1X small screwdriver STAINLESS STEEL MATERIAL The caliper is constructed from high-strength stainless steel, making it waterproof and dirt-resistant. This digital stainless steel caliper offers a longer lifespan compared to calipers with plastic or carbon fiber components. 4 MEASURING MODES The digital caliper features 4 measuring modes for internal and external diameter, depth, and step measurements, utilizing two sets of jaws and a probe. These multiple modes offer diverse application scenarios and a convenient measuring process. UNIT CONVERSION & LARGER LCD SCREEN These digital calipers allow for quick switching between inches (inch) and millimeters (mm) with a dedicated button. The caliper boasts a large, easy-to-read LCD screen that is user-friendly and legible even in bright sunlight. Wide Application Compared to standard rulers, this stainless steel caliper measures not only length but also caliber and depth, enabling the measurement of circular and cylindrical objects. Its enhanced functionality and performance are sure to satisfy. It is widely used by professionals and hobbyists alike, including jewelers, hobbyists, woodworkers, machinists, DIY enthusiasts, auto mechanics, and more.