It took me a while to figure out what you were describing but hey I got one! Bought it from Fred Meyer and my wife borrowed it, haven't seen it since. She gave the women in our church a lesson on dip-netting and another person show how to filet. His knife was dull and so was hers, she remembered the sharpener, whipped it out and sharpened her knife. The guy was impressed, probably bought his own.