Size:1000/6000 GritUse a knife stone sharpening,this is the best option to achieve the best and sharpest edge.When choosing a wet stone sharpeners, there are two main items to consider: grit and size.Our 1000/6000 sharpening stone is double sided to provide two grits enabling one stone to satisfy the basic requirements of sharpening. Our whetstone sharpening can take even the most dull knife and bring it to razor sharpness. The 1000 grit side will restore an edge profile. The 6000 grit side will smooth the edge to produce an excellent cutting knife. The size is ideal for kitchen knives at approx 7.08" length with a width of 2.36?. This is the most common length kitchen knife sharpening stone we sell for kitchens, because it is large enough for ease of use, while still very portable and fits easily in a drawer.Honing Instructions: 1. Soak stone in water until bubbles stop (5-10 mins), then place on black silicone holder above wood block?Or pad a wet cloth at the bottom?. 2. Use 1000grit side for coarse grinding at 10~30 degree angle gently for 15 minutes. 3. Then Polish the edge for 10 minutes with 6000Grit side. 4. Keep some water on the stone to stay wet. 5. After honing, clean the knife with wet cloth or water, then dry it. 6. Use a soft brush or wet cloth to clean the stone, then put it in a ventilated place to dry.Warm Tips: 1.Please make full use of the surface not just the middle part, or use flattening stone to fix it. 2.We include instructions, and also welcome any questions regarding our stone and blade sharpening. Please contact us - we want to hear from you!