The accusharp 2-step carbide ceramic knife sharpener is an innovative tool that anyone can use.The pre-angled ceramic rods and diamond-honed tungsten carbide blades are exactly what you need to care for an maintain your blades.The two stages, carbide for coarse and ceramic for fine, allow for proper angle every time.Sharpener Material: Diamond Tungsten CarbideSharpener Type: Coarse/Fine