1.Material:Natural corundum whetstone with 2 different side,a coarse side (5000)and a finer side (10000). 2.Structure: Antiskid silica and bamboo base, beautiful and environmental, the most important is anti-skid, the safety of sharpening, The guide helps to precisely position the of the tool, so you 't have to worry about hurting yourself. 3.It is versatile and it is very durable and durable. You can grind any blade, such as kitchen knives, hunting knives, pencil sharpeners, carving knives, scissors, razors, etc. It can even polish the ! 4.Easy to use, water is used as a lubricant for the sharpening stone, so it does not require expensive sharpening oil and is easily washed with water after grinding. [Instructions]: 1. the oil stone in water for about 15 minutes. 2, in , the intensity of the even grinding, the of 10%-20% is the best. 3. Do not scrape the slurry after grinding . If there is slurry, can be sharpened. 4. After the tool is ground, to wipe it with a damp cloth or rinse with water and dry it. Use a soft brush to clean the surface of the stone and let it dry in a ventilated place. [Precautions]: 1. Fully use the entire surface of the oil stone when sharpening to maintain the consistency of the surface of the oil stone. 2. Pay attention to the oil stone during use to avoid falling from a height. 3. Do not place the sharpener and the cutter in a place that is easy for children to reach to avoid accidents. 4.Please water properly in the process of sharpening to keep humidity of the stone. 5.Please 't use it on serrated blades and ceramic knife. 6.Due to the different batches, the color of the bamboo base will be slightly different, whichever is the real thing! Colour:Yellow + White Material:White corundum + bamboo Size:18x3x6cm Package Contents: 1 * Double-sided whetstone 1 * Silicone bracket 1 * Wooden base 1 * Locator Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.