Mono Pico Walnut Opener - made of stainless steel opens walnuts easily and gently. Simply insert the Pico's center prong into the top of the nut at the seam, turn like a key, and split the shell in half. The outer prongs are used to remove the nut from the shell.  IF you pull a satin ribbon or stainless necklace chain through the hole, the Pico doubles as a pendant and conversational piece.