This is a high-quality natural Amakusa whetstone (天草砥石) from Kumamoto Prefecture, Japan, a region historically known for producing reliable and durable natural sharpening stones. Amakusa whetstones are traditionally used as medium-grit stones, ideal for general sharpening and edge preparation. With an estimated grit equivalent of #800 and above, this stone is well suited for sharpening Japanese kitchen knives, Western knives, planes, chisels, and other carpentry tools. This example was carefully selected from a large number of finished stones for its quality and usability. The stone has a generous size and substantial weight, providing excellent stability during sharpening. As with all natural stones, surface patterns, mineral inclusions, and color variations are natural characteristics and not defects. A practical and authentic sharpening tool for craftsmen, knife enthusiasts, and collectors of Japanese tools. Immediate purchase is possible. Method of Shipment FedEx or Japan Post NOTICE The lot will be carefully packaged and shipped by FedEx or Japan Post. Delivery usually takes 1–2 weeks. Heavy items may be shipped by sea, which may take 1 to 2 months to arrive. The shipping method may vary depending on the item price and size. Sometimes Customs or the delivery company in your country may contact you by phone or email for clearance. Please make sure you are available to respond. If not, the parcel may be returned to me, and reshipping will cost more than twice the original shipping fee. I appreciate your cooperation.