Handheld Sharpener - Get great results every time. Preparing, sharpening and refining blades. Quickly and effectively sharpens your kitchen knives and restores dull knives to their original sharpness. Ergonomic design The knife sharpener has a comfortable handle and is suitable for both right-handed and left-handed people. The sturdy rubber non-slip base provides good stability and safety - can be placed on any flat surface (unlike the suction cup sharpener, it does not need to be placed on a completely clean surface). Use for: Steel kitchen knives and wide-toothed knives (bread knife type) with flat-backed blades, including hardened steel blades. Not for use with: ceramic knives, scissors or micro-serrated knives.