This stone features high quality coarse and fine grit made of electric furnace abrasive grain. It comes complete with vinyl carrying case and sharpens most sport knives quickly and easily.Size: 3 x 1.5 x 0.5 (7.6 cm x 3.8 cm x 1.3 cm).Weight: 3 oz. (85 g).WARNING- This product can expose you to chemicals including Diisononyl Phthalate (DINP), which is known to the State of California to cause cancer, and Di-isodecyl Phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go towww.P65Warnings.ca.gov.