Product 1. HIGH-QUALITY TWO-SIDE GRINDSTONE: the coarse grinding surface (400 grit) quickly sharpens blunt or damaged knives with just a few pulls; the fine sanding surface (grit 1000) is ideal for finishing and polishing the edges, and perfect for easy repairs to a ready sharp 2. EXCELLENT SHEEPING AND GRINDING PERFORMANCE: Sharpening is made of professional corundum, corrosion-resistant, heat-resistant, edges and corners are clearly delineated 3. 400/1000 GRINDSTONE IS SUITABLE FOR MOST GRINDING OPERATIONS: e.g. Tool steel, hardened steel, tools, knives, scissors, chisels, axes, kitchen knives, cutting class knife sharpening etc. But except serrated blades and ceramic knives etc 4. WARRANTY SHARPENING WITH NON-SLIP SILICONE HOLDER: The non-slip silicone holder holds the sharpening securely in place, so you never have to worry about slipping the sharpening over the counter 5. DOUBLE-SIDED WHITE: Sharp pebble water consists of highly resistant silicon carbide double-sided grain 400/1000. Grit 400 is used to restore the edges to their original shape. Grit 1000 is used to sharpen and smooth the edges. Flattening is used to even out and flatten the uneven surface caused by repeated use. Since it is a water - no expensive honing oil required 6. 100% SATISFACTION GUARANTEE WITHOUT RISK We are sure that you will love this whetstone. Try it today without any risk. PACKAGE 1 x Sharpening 1 x rubber holder 1 x Bamboo base