Ergonomic Design: Our diamond steel knife sharpener has a 2-stage sharpening system that can sharpen your knives to full sharpness. The first stage of diamond sharpening repairs and straightens damaged blades and the second stage restores and polishes cleanly. Our world's best knife sharpener is also designed with comfort in mind: the quality suction cup on the bottom offers u Easy, safe and universal use: our knife sharpener kit with diamond, ceramic, tungsten , easy to use. Simply place the knife in the sharpening slot and enjoy your new sharpening in seconds. It is also safe to use and works. including high quality inchhardinch steel knives. (Be careful not to pull back and forth, this will damage the knife sharpener) Number of pieces supplied: 1 Size: 20.0*6.3*7.0cm White color