This cordless knife sharpener is designed to restore the razor's edge on a blade in just seconds. It includes a catch tray to collect all metal shaving for easy clean up. This As Seen on TV knife sharpener is battery-operated so there are no wires or plugs to get in the way. It includesincludes a safety slot for different functions so you can use it to sharpen scissors and household tools, as well. This Knife Sharpener is ideal for chef's knives, carving knives, bread kniideal for chef's knives, carving knives, bread knives, steakves, steak knives and even choppers and cleavers.