The perfect 3-in-1 design: : With the 3-stage knife sharpener you can easily and professionally sharpen dull knives. Tungsten steel plates for chisel and coarse sharpening, diamond plate for fine sharpening, ceramic stone plate for precision sharpening. Easy and safe operation: : The non-slip rubber mat on the bottom provides a firm stand. Simply place the blade in the slot and gently pull the knife several times in one direction for quick and efficient sharpening. Sharpening:- instead of buying new ones. Enjoy your knives again. Sharpening a knife is more durable and cheaper than buying a new dull knife. Before buying a new knife, sharpen your knife with a sharpener. Environmentally friendly and safe: The sharpener is made of high quality ABS material. With the ergonomic handle, your hands will be free from friction and your hands will not be cut. Service: : our sharpeners have been thoroughly tested to ensure high quality.