This Aluminum Oxide oilstone includes a fine-grade stone with a convenient storage/carrying case. Aluminum Oxide oil stones are a very popular man-made choice. These stones can cut fast, and also produce a fine edge on tools and knives. The fine-grade stones are used to refine the edge, improving the quality of the cut it delivers. We recommend using our Case Honing Oil when sharpening. This sharpening stone comes shrink wrapped. Proudly made in the USA. Man-made, fine grade stone Storage/carrying case Packaging dimensions: 5.38" x 1.38" x 0.38" Weight: 4.0 ounces Made in USA