Twist Vegetable Chopper is compact and quiet. Put an onion into the container then hold the top and bottom with both hands. With a few quick flicks of the wrists, onion is reduced to a fine chop. The blades on the Twist and Chop Vegetable Chopper are double sharpened to cut in both directions so not a single motion is wasted. And for cleanup,there's no cutting board to wash,and the tool comes apart for cleaning by hand or in the dishwashe.