I remember Wayne hills GIANT E D B's The biggest w\as just over 7" when I last saw it. I don't know how big it was when it died. It was huge. I know it was over 7' because he put it on the floor of his snake room witch had 12" V. C. tiles it crawled right along the wall in a straight line it was easy to count the tiles. 7 not including the rattle witch had over 20 segments.