1DUAL SIDED DESIGN: One side is coarse grained for quick reparation of dull blades, while the other side is fine grained for polishing and maintaining razor incisive edges on knives. 2PREMIUM ABRASIVE MATERIAL: Made with durable and wear resistant materials of high hardness, ensuring long lasting use without easily wearing out. 3CONVENIENT PORTABILITY: Whetstone's compact and portable design allows for easy transportation, making it perfect for outdoor or workplace use. 4VERSATILE APPLICATION: Sharpening stone is suitable for different types of knives, such as kitchen knives, hunting knives, fishing knives, and more. 5RESTORES SHARPNESS QUICKLY: By using this sharpening stone, you can quickly restoring the sharpness of your tools, enhancing work efficiency. Item Type: Sharpening Stone Material: Boron Carbide Specification: 800 grit Size: Approx. 10 x 2 x 1cm / 3.9 x 0.8 x 0.4in Weight: Approx. 47 g / 1.7 oz 1 x Sharpening Stone