Fowler XTRA-MIC Plus Electronic Micrometer Set Includes the following... 0-3" / 75mm Measuring Range IP54 Protection (Water, Oil & Fluids) Anodized Aluminum Ratchet Thimble Super Large LCD Display, 14mm Height Resolution: .00005" / .001mm Accuracy: .0002 / .005mm Carbide Measuring faces Includes Plastic Case Set includes the following... 0-1" / 0-25mm Micrometer 1-2" / 25-50mm Micrometer 2-3" / 50-75mm Micrometer