Kyocera Manual Roll Sharpener with Fine Ceramic Sharpening Allows for approximately 10 enabling simultaneous rough and fine Easy to restores sharpness

[Just move it back and forth about 10 times] You can sharpen it quickly and easily by moving it back and forth about 10 times. There's no need to worry about getting sharpening shavings on your hands or the tool. Size: Main unit/15.8 x 5.8 x 5.7 cm, Weight: 60g, Country of origin: Finland Materials: Sharpening stone/Fine ceramics, polyacetal (heat resistant temperature: 80°C), Body/Glass fiber reinforced polyamide (heat resistant temperature: 80°C), Cover/Polyamide (heat resistant temperature: 80°C), Anti-slip/Silicone rubber (heat resistant temperature: 80°C) [Restores sharpness] The whetstone has a grooved surface for rough sharpening and a flat surface for finishing, allowing you to perform both rough and finishing sharpening in one go by rotating it. [For metal double-edged knives only] *This roll sharpener is for metal (steel, stainless steel, etc.) double-edged knives. Single-edged knives (deba knives, sashimi knives), knives with special blades (bread knives, etc.) and ceramic knives cannot be sharpened. Excellent wear resistance and long-lasting