Genuine 3 Stone Arkansas EZ MiniHone Whetstone Knife Sharpening System with Silicon Carbide (Coarse), Soft (Medium) and Hard (Fine) Stones 4" x 1/2" x 1/4" MIOB-43-T 3 stone EZ Hone comes with Coarse (Silicon Carbide), Medium (Soft Arkansas) and Fine (Hard Arkansas) 3 stone sizes are 4 inches long by  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