This factory-sealed NIVES 3V Sharpening System is the perfect addition to any kitchen. The system includes a sharpening stone and a ceramic knife blade, suitable for sharpening all types of knives. The brand NIVES is known for its high-quality sharpening products, and this system is no exception. The sharpener is made of durable ceramic material and is suitable for use on knives of all sizes. Whether you're a professional chef or a home cook, this sharpening system is an essential tool for keeping your knives sharp and ready for use. Order now and experience the quality of NIVES sharpening products!