Check the listing for details. Spyderco Tri-Angle Diamond Sharpening Stones - Set of 2 Rods. Color: Gray, Condition: New. Listed at 89.09 USD. DIAMOND-COATED These steel triangle stones are expertly coated with a bonding agent and then covered in diamond particles, ensuring a superior sharpening surface for your tools and knives. PROFESSIONAL-GRADE Recommended for intensive restoration work, these diamond hard abrasives allow for aggressive reshaping, re-beveling, and re-profiling of a cutting edge, providing a level of performance suited for professional use. VERSATILE EDGE MAINTENANCE Designed to sharpen a wide array of edges, these stones are not only effective for standard blades but also excel with serrated edges. They are perfectly compatible with the 204 Sharpmaker Sharpening System. EASY-CARE Cleaning these diamond-coated stones is as simple as rinsing them with fresh water and allowing them to air-dry, ensuring they're ready for use whenever you need them. Specifications: Sold as a pair Overall Length: 7 inches Coating: Diamond