Sharpens all dull knives in fast and efficiently
Hones knives, the process which burnishes out deformities in and realigns the blade.
With two independent spring-action arms made of tungsten carbide that contour to your knife’s edge better 
Offers any kitchen knife a total make-over
Works on all types of knife blades, like standard, serrated, and beveled
Sharpens the following types of knives: Chef Knives, Boning Knives, Serrated knives, Japanese knives, Paring knives, Cleavers and many more except ceramic blades