Aladdin Knife Sharpener© a standard piece of equipment on the party boats of New Jersey. No more lengthy processes to sharpen your fillet knife because with the Aladdin, a few strokes across the tungsten carbide and your knife is ready to cut. Sharpens in seconds.  “The tungsten carbide sharpener that gives regular, hollow ground and stainless steel blades a razor sharp cutting edge.” Can be wall-mounted or mounted on knife block or cutting board