Material: Made from a combination of silicon carbide. Sharpening stone: Get a Dekton professional knife sharpening stone. 2 Sides: Sharpen your knives like the pros with either side able to handle water or oil. Fine & coarse grain: Remove imperfections on knives and sharpen them. Size: Sized as 20cm x 5cm x 2.5cm. Dekton Professional Knife Sharpening Stone | Living Social