Chef'sChoice Hybrid Diamond Hone Knife Sharpener 220 is a high-quality, durable knife sharpener that is suitable for European straight edge and serrated knives. Featuring the advanced hybrid technology, combining electric and manual sharpening, Chef'sChoice Hybrid Diamond Hone Knife Sharpener 220 provides a superior edge on both quality European straight edge and serrated knives. The 2-stage sharpening system ensures that you get an extremely sharp blade with lots of “bite” with each stroke. With its compact size, 18.5(l) x 8(w) x 8.5(h)cm dimensions make it easy to store or take with you on the go!