Specification Brand : Davis Label : Davis Sights Manufacturer : Davis Sights MaterialType : Stainless Steel PartNumber : 2163LRGS ProductGroup : BISS Basic ProductTypeName : DIMENSIONAL_MEASUREMENT_CALIPER Publisher : Davis Sights Size : 3 to 3.9 Inches SmallImage_Height : 56 SmallImage_URL : https://m.media-amazon.com/images/I/31A1EZhNEzL._SL75_.jpg SmallImage_Width : 75 Studio : Davis Sights Title : Davis Large Radius Gage Set 2 1/16"-3"