The whetstones are made of professional grade natural stone, which is quite portable. It is used for grinding and sharpening the edges of steel tools and tools. The stone is flat for working flat edges and is available in 2 different grit sizes. Choose the right whetstone for your sharpening work. Features: The high-quality whetstone guarantees good sharpening results and a long service life. This sharpening stone is small in size, portable and convenient to sharpen more efficiently. Suitable for most grinding operations: kitchen utensils, shearing tools, razor straight, scissors, cutter, garden tools. Made from professional grade natural stone, which is quite portable. Features: The black color Grain: 320# Item size: 180 * 60 * 25 mm / 7.1 * 2.4 * 1.0 inch Item Weight: 300g / 10.6 ounces Package size: 180 * 60 * 25 mm / 7.1 * 2.4 * 1.0 inch Package weight: 300g / 10.6 ounces Packing list: 1 * whetstone