Enhance your sharpening routine with this versatile Foldable Grindstone featuring a dual-sided 400/600 grit sharpening surface, designed for both coarse grinding and fine honing. Made with high-quality diamond dust, composed of single-crystal particles, this sharpening stone offers exceptional hardness and durability, providing efficient and long-lasting sharpening performance for your knives and tools. Key Features: · Dual-Sided 400/600 Grit Surface: Offers coarse 400 grit for rapid material removal and fine 600 grit for smooth, precise sharpening, making it suitable for various sharpening needs. · Foldable and Portable Design: Compact and lightweight with a folded size of approximately 12.5 x 3 x 1.8 cm (4.9 x 1.2 x 0.7 inches) and an unfolded length of 23 cm (9.1 inches), ideal for easy storage and travel. · Durable and Reliable Construction: Crafted with diamond dust that contains single-crystal particles, ensuring resistance to breakage and extended usability even under heavy use. · Convenient to Use: The foldable grindstone is more user-friendly compared to traditional single-sided stones, enhancing convenience and sharpening efficiency anywhere. · Lightweight and Compact: Weighing approximately 63g, it is easy to carry and perfect for outdoor activities, survival kits, or everyday sharpening tasks. · Versatile Application: Can be used effectively with survival knives and integrated with flint stones, making it an essential tool for outdoor enthusiasts and professionals alike. Specifications: · Item Type: Foldable Grindstone · Material: Diamond Dust (single-crystal composition) · Weight: Approx. 63g · Color: Orange · Folded Size: Approx. 12.5 x 3 x 1.8 cm (4.9 x 1.2 x 0.7 in) · Unfolded Length: Approx. 23 cm (9.1 in) Package Includes: · 1 x Foldable Grindstone This foldable diamond dust grindstone combines portability, durability, and dual grit functionality, making it an essential sharpening tool for maintaining sharp blades efficiently both indoors and outdoors.