Made of high-quality material, solid, durable, and practical for long-term use. Converts inches, millimeters, and fractions with ease. Measures internal and external dimensions, diameters, steps, and depth. Features automatic on/off function. IP54 rating provides protection against dust and water. Large LCD screen displays measurement results clearly, eliminating difficulty in reading lines. High precision and accurate measurement, ideal for professional and DIY use. Suitable for jewelers, carpenters, mechanics, auto repair, and other applications. Powered by 1 x 1.5V LR44/SR44 button battery (included). Material: P66 Plastic, ABS. Length: 32cm / 12.60in. Measuring Range: 0-300mm / 12 inches. Accuracy: 0.2mm. Resolution: 0.1mm. Color: Black. Quantity: 1 Piece. No retail packaging. Allow 0-1cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the actual color may vary slightly from the image. Package includes: 1 x Digital Vernier Caliper, 1 x 1.5V Button Battery.