Legality of SPECIFIC erfly knife in Chicago, IL?

Wow. Never actually seen a training erfly knife before. You couldn't be ticketed for this item but it does give an officer p/c to believe that you may have other weapons and so forth in/on/around your possession. So be careful where you take this and how you present the knife, if a reasonable person were to believe that it was in fact a weapon and you presented it as such then you might as well be carrying the real thing. Hope that helps