Type 1: Features: 1.High Strength Plastic Viscose Material: The ruler body is made of high strength plastic material, the watch head is made of ABS plastic, the cover is light and compact, convenient to use. 2.LCD display: LED LCD display large screen, digital direct reading, intuitive and convenient. 3.Metric-British system conversion: Metric-British system, one-button conversion; pull start, no automatic shutdown for 5 minutes; old zero in any position. 4.Clear scale: clear scale film font, digital reading+scale reading, double check. 5.Easy measure & easy read: automatic on/off, measure inside, outside, depth and step with jaws and probe; extra large LCD screen, fraction/inch/metric conversion, for easy and accurate reading. Descriptions: 1.This Digital Caliper with inch/metric/fraction conversion, is an ideal measuring tool for length width depth inner diameter outer diameter. 2.suitable for designers, engineers, mechanics to measure the thickness of tappet clearances, spark plugs gaps, bearing clearances, piston ring gaps and other hard toreach places. Specifications: Material: plastic fiber Color: black,silver&white Size: 238*77*10mm Range: 0-100mm 0-150mm Accuracy: 0.1mm Unit of measure: inches, mm Resolution: 0.1mm/0.01in Accuracy: ±0.1mm/±0.01in Package included: 1x Electronic Digital Display Plastic Caliper Type 2: Specification: Material:Plastic Size:0-150mm/0.05 Conversion: 1 inch = 25.4mm or 1mm = 0.0393 inch Color:black,white,blue,green,gray Weight: 50g Quantity:1Pc Package List: 1 x Vernier Caliper Note: The battery is included. 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering.