Liquid K2, a form of artificial cannabis that triggers erratic behavior when smoked, is currently being smuggled to inmates throughout the mail, sprayed on letters and internet pages of textbooks. This manner of K2 is far harder to detect than common leafy K2 products which seem far more like cannabis. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share