1"x6" Fits Edge Pro, JIGS, Hapstone, TSProf & Ruxin sharpening sytems Highest quality elecroplating Fast and consistent results Made by Jende Industries Jende 1x6 Diamond stone plates fit the Jende JIGS, Edge Pro, TSProf, Hapstone, and Ruxin knife sharpening systems. The quality of the electroplate is what makes these better than the rest! Diamond will wear down, but the won't fall off or chip out.