We offer discount for large quantity. Welcome to us!2 set Whetstone 2-IN-1 sharpening stone 240/800/400/1000 valor Waterstone knife sharpener, rubber stone holder includedSet2: 1 x sharpening stone 1000/400 Grit + 1 x sharpening stone 240/800 grit2 Grit sides for the best sharpening: 240 grit side is best for damaged edges, very dull edges or chipped edges, Very fast metal removal, leaves visible scratches in the cutting edge. The 800 grit side leaves a metal edge with a matte look. The edge sharpness is equivalent to most factory edges on knives, tools.240 Grit Side: this coarse sand is highly recommended for very dull edges of knives and tools. Whether you're refining a worn edge or setting a new bevel angle, coarse is the grit that gets the job done.2 Grit sides provide the best sharpening: 400 grit side has a good metal removal rate, light edge scratches. An intermediate stage before finer groats. The 1000 grit side leaves a metal edge with a matte look. The sharpness of the edges corresponds to most factory edges on knives, tools.1000 Grit Side/800 Grit Side: this grit is a very good overall grit. It's good enough for many jobs and still has enough abrasive properties to sharpen knives and tools that aren't too dull. If you keep your knives and tools in good shape, you'll often find yourself at this level of gravel. This grit is also very common in the final stage of many kitchen knives. Instructions for use:1. Soak the sharpening stone with water for 5 minutes, then place it on a stable surface such as a table or desk.2. First, use the grit side #240 to make the coarse sanding at an angle of 10 - 30 degrees, push the knife out with a little force and then gently push it in. This process takes about 15 minutes. Then use the #800 grit side for sanding. This process takes about 10 minutes.4. After sharpening the knife, clean the knife with a damp cloth or water, then dry.5. Use a soft brush to clean the stone for sharpening, then place in a ventilated area to dry. Note:1. Do not use only the center of the stone For sharpening, please make full use of the whetstone surface.2. Do not use a whetstone to sharpen serrated blades.400 Side Grit:This fine sand is capable of putting an edge on a tool or knife that exceeds almost any commercial edge you find. This gravel is very thin and sharpens very slowly. This is to be used after creating an edge with thicker grits. Material: White CorundumColor: Light Green & Grey & Light Green & WhiteDimension: 18*6*3cm, 7). 09 inch (L) x 2.36 inch (W) x 1.18 inch (T)Packing List:1 x 1000/400 Grit Sharpening Stone1 x 240/800 Grit2 x Base Sharpening StoneOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/