Genuine 3 Stone Arkansas Full Size Ez Hone Whetstone Knife Sharpening System with Silicon Carbide (Coarse), Soft (Medium) and Hard (Fine) Stones 4" X 1" X 1/4" EZH-43-O 3 Stone Model has Coarse (Silicon Carbide), Medium (Soft) and Fine (Hard) Stones 3 stone sizes are 4 inches long by 1 inch wide by  thick Comes with one ounce of honing oil Genuine Arkansas stones are 100% quarried in the Ouachita Mountains of Central Arkansas Comes in plastic tube for easy storage when not in use