Process of using the sharpener: Place the device on a firm table. Put the edge to be sharpened in either of the slots. Blunt in slot 1, 2 and for quick sharp, slot 3. Pull the edge backwards towards you. (Make sure the edge is pointed away from you). Repeat a few times to have a sharpened knife. If using coarse edge for a blunt knife, do it a few more times for a thin and sharp blade. Things we liked: Bright colours in handles. Easy press and pull out edges for cleaning. Simple Design. Light in weight Things we didn’t like: Absence of base Shorter handle. Can’t be used to sharpen totally blunt knives or scissors.