The manual sharpener of a knife sharpener generally has a double-section knife groove, and a good grinding effect can be achieved by putting the knife on the knife groove a few times.
Specifically: How to use:
1. First find a clean surface to absorb the suction cup.
2. Put it on the table without air in the suction cup, and then press the handle firmly.
3. After fixing the suction cup, pull it a few times behind the V-shaped opening of the sharpener sharpener.
