3 IN 1: Our sharpener is a three-slot design, including coarse grinding, fine grinding and polishing. Its about making sure theres always the right sharpener to meet your tooling needs, whether its sharpening dull knives, everyday sharpening, or polishing and burrs.HIGH QUALITY: The coarse polishing part of the sharpener uses tungsten steel blades, the fine polishing is diamond grinding wheel, and the polishing is aerospace ceramic. Different materials can meet your different sharpening needs. The main body is made of plastic and rubber.NON-SLIP PROTECTION: The non-slip handle and the sharpener base are equipped with some rubber materials to make the handle feel comfortable and increase the friction between the sharpener base and the table. This design guarantees a stable grinding process and safe operation.PRACTICAL AND EASY TO USE: This kitchen sharpener is ideal for stainless steel bone cutters, slicing knives, small kitchen knives, fruit knives and household kitchen knives. During rough grinding, pull the blade back with different force according to different blades, repeat 5 times. When fine grinding, keep the blade vertical, then pull it out about 5 times.UNIQUE DESIGN: This design can ensure the hygiene of the kitchen sharpener and protect the health of you and your family.Delivery Quantity: 2pcsPackage Contents: Only the above package contents, excluding other products.Size: 21.5*6cm(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Colour: Black(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)