Liquid K2, a kind of artificial marijuana that triggers erratic habits when smoked, is currently being smuggled to inmates from the mail, sprayed on letters and webpages of books. This form of K2 is much harder to detect than classic leafy K2 items that look a lot more like marijuana. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share