High-Quality Stainless Steel Digital Caliper Product Size: 245x90x22 mm Packaging 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, 1 x small screwdriver STAINLESS STEEL MATERIAL: Crafted from high-strength stainless steel, this caliper is waterproof and dirt-resistant, offering a longer lifespan than calipers with plastic or carbon fiber components. 4 MEASURING MODES: Featuring 4 measuring modes, this digital caliper can measure inner and outer diameters, depth, and steps using two sets of jaws and a probe, providing versatile application scenarios and a convenient measuring process. UNIT CONVERSION & LARGE LCD SCREEN: Easily switch between inches (inch) and millimeters (mm) with a single button. The large, easy-to-read LCD display ensures user-friendliness and clear visibility, even in bright sunlight. WIDE APPLICATION: Unlike standard rulers, this stainless steel caliper measures not only length but also caliber and depth, allowing for the measurement of circular and cylindrical objects. Its multi-functionality and superior performance cater to professionals and hobbyists alike, including jewelers, woodworkers, machinists, DIY enthusiasts, auto mechanics, and more.