• The base of the sharpener is made of high-quality nano materials, offering strong adhesion and durability. • Simple operation: place the dull knife in the V-slot and pull 2 to 4 times to restore its edge. • Less sharpening effort and less blade wear. • Suitable for all types of fixed knives (chef's knife, paring knife, carving knife), serrated knives, and scissors. • Includes a detachable ceramic rod for special-shaped tools and polishing. • Innovative design with V-slot and spring, allowing the slot to expand and contract according to the blade angle. • Fast and efficient sharpening, perfect for home or workshop use.