These are true Japanese style stones intended to mimic natural water stones in use. They have the feel and speed of a natural stone with the grain consistency of a man made stone. Ice Bear water stones cut fast and produce the superior scratch patterns so necessary when moving through the grit range to progressively fine stones. Whether you stop at 4000, 6000 or continue to 8000 and beyond, these stones make the task of polishing your blade's edge - easier and faster than ever before. All stones are approximately 7-1/4"x 2-3/8"x 3/4".