General description Our Kitchen Electric Knife Sharpener features a 4-level sharpening system designed to sharpen your knife edges with precision. The first stage repairs and straightens damaged blades, while the second stage restores and polishes them. With an ergonomic design, it includes a high-quality suction cup at the bottom for a stable base and is comfortable to hold. Technical specifications Color: Black Material: ABS + Stainless Steel Charging methods: Household sockets, mobile power supplies, computer USB Built-in battery: Large-capacity, sharpens over 50 knives continuously Measurement allowed error: +/- 1-3 cm Usage The sharpener is easy and safe to use. Simply insert the knife into the sharpening slot and pull it in your direction several times for a quick sharpening. It is suitable for all types of knives, including high-quality "hard" steel knives. Other information Charger located under the product base Light reflection and different displays may cause color