Made from aluminum oxide, it is durable and practical. Its smooth surface helps protect your hands. Quickly sharpen dull kitchen cutting tools with this stone. Ideal for home and kitchen use. Suitable for various edged tools such as kitchen knives and scissors. Multipurpose sharpening stone for kitchen and outdoor applications. Features - Color: Grey - Material: Aluminum oxide - Size: Approximately 7.5 x 7.5 x 2.5 cm - Durable and practical construction - Double-layer design for enhanced usability - Efficiently sharpens dull cutters, saving time - Ideal for home, kitchen, and restaurant use - Compact and portable round grindstone, easy to use Package list: 4 x Sharpening Stones