Features: 1. Large LCD Digital Display Screen for easier reading. 2. Alloy jaws, chrome treatment, convenient handle for easy measurement. 3. Metric conversion and other conversions, more convenient to use. 4. Zero setting to take intermediate or differential measurements, and hold feature to freeze display for later viewing 5. Spring loaded with locking nut for fast and efficient measurement of mass production parts. Specification: Condition: 100 percent Brand New Item Type: Inner Diameter Measuring Tool Optional Type: Straight Calipers, Bending Calipers Battery Type: CR1632 button battery (Not Included) Measuring Range: Straight Calipers: 12.7-165mm or 0.5-6" (inside) Bending Calipers: 0-150mm or 0-6" (outside) Product Accuracy: ±0.2mm or 0.008" Package List: 1 x Inner Diameter Caliper 1,Large LCD Digital Display Screen for easier reading. 2,Alloy jaws, chrome treatment, convenient handle for easy measurement. 3,Metric conversion and other conversions, more convenient to use. 4,Zero setting to take intermediate or differential measurements, and hold feature to freeze display for later viewing 5,Spring loaded with locking nut for fast and efficient measurement of mass production parts.