These are the replacement wheels for the larger, three-stage, handheld ceramic water stone sharpener (71550GB sold separately). It includes a coarse blue, medium brown and superfine yellow ceramic wheels.

• The blue coarse-grit wheel is to sharpen dull and chipped edges
• The brown medium-grit wheel is for standard sharpening
• The yellow superfine-gril wheel is for polishing and refining the edges
• Made in Japan