The perfect 3-in-1 design: With the 3-step knife sharpener you can easily and professionally sharpen dull knives. Tungsten steel plates for scissors and coarse sharpening, diamond plate for fine sharpening, ceramic stone plate for precision sharpening. Easy and safe operation: the resistant rubber mat on the bottom provides a firm position. Simply put 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. Environmental 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.