Specification Brand : IDEA Engineering Label : IDEA ENGINEERING Manufacturer : IDEA ENGINEERING PartNumber : IDEA-36-123 ProductGroup : BISS Basic ProductTypeName : PRECISION_MEASURING Publisher : IDEA ENGINEERING SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41IjsJr+g5L._SL75_.jpg SmallImage_Width : 75 Studio : IDEA ENGINEERING Title : IDEA Engineering 123 Gauge Blocks for milling (1x2x3 inches, Within 0.0001†Square)