Kyocera Electric Diamond Sharpener for Diamond Sharpens Each Edge Multiple High Sharpness Requires Four AA Batteries Suitable for Ceramic and Metal

[Electric x Diamond Whetstone] Electric power and a diamond whetstone allow you to sharpen your knives thoroughly. [Easy to sharpen] Simply pull the blade toward you along the guide slot to sharpen it easily. [Can also sharpen ceramic knives] Diamond is harder than ceramic, so it can sharpen not only metal knives (stainless steel, steel, titanium) but also Kyocera ceramic knives. Batteries (4 AA alkaline batteries required) sold separately. Size: Main unit/15.5 x 9.8 x 7.3 cm, Weight: 260 g, Country of origin: China Materials: Grindstone: Industrial diamond #600, Body: ABS resin, polyacetal (heat resistant up to 70°C)