Dual-Sided Sharpening for Superior Knife Maintenance The Naniwa Basic Stone 220/1000 is a versatile sharpening stone from the Japanese expert, Naniwa. Featuring a coarse 220-grit side (green) and a medium-fine 1000-grit side (red), this stone is perfect for restoring and sharpening knife edges. The aluminum oxide grinding particles ensure efficient sharpening. High-Quality Construction These stones are soft and wear slowly, revealing fresh abrasive grains for consistent performance. The thick grinding layer ensures longevity, making them a great investment for any kitchen. Easy to Use Before use, soak the stone in water for a few minutes. This simple step ensures optimal sharpening results every time. Why Choose Naniwa Basic Stone 220/1000 220 Grit: Repairs and restores blunt knife edges. 1000 Grit: Sharpens and maintains fine edges. Durable: Long-lasting with a thick grinding layer. Efficient: Fresh abrasive grains continuously come to the surface. High-Quality: Strict quality control by Japanese specialists. Ensure proper storage to prevent cracks and extend the life of your stone. In the Box 1 x Naniwa Basic Sharpening Stone - Grit: 220/1000