{"product_id":"traditional-product-inkstone-sharpening-stone-premium-quality","title":"Traditional Finishing Inkstone Whetstone, Premium Quality, Set of 2 ( 硯用泥砥石 特上 )","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis is a finishing Inkstone whetstone with a fine grain equivalent to 4000 grit, specifically designed for high-end calligraphy inkstones. Please use it with the \u003cmeta charset=\"utf-8\"\u003ewhetstone surface parallel to the inkstone surface.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eLength: 30 mm  \u003c\/p\u003e\n\u003cp\u003eWidth: 30 mm\u003c\/p\u003e\n\u003cp\u003eThickness: 30 mm\u003c\/p\u003e\n\u003cp\u003eWeight: 30gram ( 1 piece ) .\u003c\/p\u003e\n\u003cp\u003eMaterial: Natural mud slate\u003c\/p\u003e\n\u003cp\u003eWhen paper fibers adhering to ink or brushes stick to and solidify on the inkstone's surface due to the glue in the ink, clogging occurs. This makes it difficult for the ink to produce a clean color.\u003c\/p\u003e\n\u003cp\u003eSoak the inkstone for about an hour and the whetstone for about five minutes beforehand to reduce scratching.\u003c\/p\u003e\n\u003cp\u003eBrown particles will come off the whetstone, but do not rinse them away. Instead, gently rub the whetstone parallel to the surface of the inkstone.\u003c\/p\u003e\n\u003cp\u003eBy filling the inkstone with water and carefully polishing it with this \u003cmeta charset=\"utf-8\"\u003ewhetstone, you can remove deposits from the microscopic protrusions on the inkstone surface, maintaining it in optimal condition.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eAs the particles of the whetstone break down into finer grains during polishing, they polish the surface of the inkstone. This allows a single stone to function as multiple grades of artificial whetstone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"Traditional Product · Inkstone Sharpening Stone · Premium Quality, Set of 2 ( 硯用泥砥石 特上 )\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0582\/0740\/4224\/files\/2026-02-0315.14.25.jpg?v=1770100489\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cmeta charset=\"utf-8\"\u003e*This is not made by Kobaien. Not a Kobaien product.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Japanese inkstick shop by Ichi Inc. The authorized dealer of Kobaien, Japan.","offers":[{"title":"Default Title","offer_id":42209683669184,"sku":"sonot-001","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/0740\/4224\/files\/IMG_2577.jpg?v=1770100452","url":"https:\/\/the-worlds-oldest-inkstick.jp\/products\/traditional-product-inkstone-sharpening-stone-premium-quality","provider":"★Kobaien Sumi Ink Stick Shop by Ichi Inc., Japan","version":"1.0","type":"link"}