Product details:

Color: grey feature: 220/1000-grit combination waterstone for repairing, then establishing, steel cutting edges4000/8000-grit combination waterstone for maintaining, refining, and polishing steel cutting edges1/2 x 8 x 3 inch h x w x d size makes each waterstone suitable for use as a bench stone for knives and toolsblue plastic hinged boxes with no-slip rubber feet can be as holders for the waterstones during sharpening3/4 x 9 x 3 inch coarse-grit silicon carbide flattening stone for maintenance of waterstones, and an instructional dvd to demonstrate basic waterstone sharpening.