Multifunctional household stone

Features:
1. adjustable grinding and running-in angles with integrated spring.
2. Maintain the angle between 15 and 45 degrees when sharpening the knife. Can be used for sharpening, lapping
3. Non-slip silicone pads at the bottom.
4. Applicable to metal and serrated knives.
Characteristics:
Material: carbide, ABS, silica gel
Size: as pictured
Product included: 1 x kitchen knife sharpener