The Chef's Choice Crystal Crafter Diamond Abrasive Model 410 is a high-quality kitchen tool designed for sharpening knives and other cutting tools. This black unit is brand new and sealed, ensuring a pristine and effective product for culinary use. Made in the United States, it is a reliable option for maintaining sharp blades with its diamond abrasive technology. Ideal for any chef or home cook looking to keep their kitchen tools in top condition.