I still have mine, why? because I love knives! This is a knife sharpener. I don't think they sell these kind anymore but you can find them at flea markets, goodwill stores or any kind of 2nd hand store just look in the spoon box. I love my knives to be sharp so I'm constantly using it. The new knife sharpeners are not that reliable. I think I inherited mine from dad. I don't think people sharpen their knives anymore. An almost lost art except for knife collectors and professional cooks. maybe I'm wrong. So did you know what this was? SHARE if you knew!