Daiso Household Combination Whetstone (家庭用 砥石) designed for everyday sharpening of household kitchen knives, scissors, and pocket knives. Key Specifications • Brand: Daiso (ダイソー) • Type: Combination double-sided whetstone (粗研ぎから、仕上げまでこれひとつで手軽にできます — everything from rough grinding to finishing in one stone) • Grit Ratings: o Coarse Side (#180 / 荒研ぎ): For repairing dull or chipped blades and reshaping the base edge (磨耗の多いとき、下地研ぎに). o Fine Finish Side (#320 / 最終仕上げ): For daily maintenance and honing a clean cutting edge (切れ味を保つ日々のお手入れに). Recommended Applications (Shown in Icons) • Kitchen knives (包丁) • Scissors (ハサミ) • Pocket knives / Utility knives (ナイフ) • Other general blades (その他) 210 x 55 x 30 mm (roughly 8.3" x 2.2" x 1.2") refer to a standard full-sized desktop sharpening stone.