The knife sharpener designed sharpening slots with 2-stage sharpening system specially . Coarse Slot for fine grinding and sharpening, and Fine Slot for polishing blades. Simply place the kitchen knife sharpener on a flat work surface, hold the comfort-grip handle with one hand and the knife handle with the other to sharpen.Then, you can recycle your old, dull stockpile and sharpen them back to life. The handle is ergonomically designed to work safely and relentlessly. The base is covered with a high quality TPR mat to prevent slipping. The sharpener can be easily used on any flat surface in the kitchen. This knife sharpener with durable ABS plastic, diamond and stainless steel. Knife sharpener grinding head with detachable design for easy cleaning and sustainable use. Professional Knife Sharpener, Premium Two Stages Manual Knife Sharpener with Non-Slip and Ergonomic Design. Product material: stainless steel + ABS Weight: 140g Product size: 22cm * 5.1cm * 5.7cm Color includes: black red, green black Package includes: 1pc * sharpeners