Product Overview: TV Bavarian Edge Knife Sharpener Kitchen Household Grinding Wheel Profession Cheif Knife Slicker GrinderTop of page Material: ABS and Tungsten Steel Size: 16*5.3cm Weight: 0.408kg Advantage 1.Best knife sharpener for both smooth and serrated knives. Sharpener sharpens ALL your dull knives in seconds, unlike an electric knife sharpener or steel sharpener that only sharpens two different types of blades 2.Sharpen dull and damaged blades in seconds. Sharpen even the thinnest knife blades to a razor sharp edge and polish your old knives - give your chef's knife and butcher's knife a new lease of life 3.Professional and portable knife sharpener works on all types of knife blades, such as standard, serrated, and beveled 4.Precision tungsten carbide cutting edges on patented spring bars adjust to the angle of the knife blade. Control the angle from 12 degrees for a super sharp fillet knife to 20 degrees for a sturdy chopping blade.The Cdiscount Community answers your questions