Item Type: Electronic Digital Brake Caliper_x000D_ Material: ABS_x000D_ _x000D_ Range: Approx. 200mm / 7.9in_x000D_ Battery Model: CR2032 (not include)_x000D_ Battery Capacity: 1000mA 1Plastic transparent ruler body sliding smoothly, corrosion?resistant and wear?resistant. 2Can measure the angle of 360 and has many uses, and with accurancy grinding and quality chip technology. 3LCD high?definition digital display large screen real?time digital display for easy reading. 4Via accurancy craft by many experts, vernier caliper's quality is guaranteed, you can use it with confidence 5Widely used in the measurement of the wear of various types of automobile brake pads and brake disc and the thickness measurement of the bottom of deep barrel?shaped objects.1 x_x000D_ _x000D_ ElectronicDigitalBrakeCaliper