【3-level knife sharpener】Our sharpeners have three notches to meet your different needs. The 1 is tungsten steel sharpening for very dull metal blades, the 2 is for fine sharpening, and the 3 is for ceramic blade. 【High-quality materials】The handle is made of ABS plastic, which is heat-resistant, high temperature resistant and impact resistant. The outer side of the sharpening slot is made of 304 stainless steel, and the inner side of each sharpening slot is made of tungsten steel, a diamond sharpening rod and a ceramic sharpening rod. 【Practical and useful】The knife sharpener is suitable for a variety of knives, such as bone cutter, slicing knife, paring knife, fruit knife, multi-purpose scissors, etc. So your daily needs are met. 【Easy and Safe Operation】The non-slip rubber mat on the bottom provides a firm position to prevent slipping. Simply place the knife into the slot and sharpen 3 or 5 times to quickly sharpen the damaged or dull knife without damaging the knife. 【Ergonomic