Liquid K2, a style of synthetic marijuana that causes erratic behavior when smoked, is currently being smuggled to inmates throughout the mail, sprayed on letters and webpages of textbooks. This type of K2 is much more difficult to detect than regular leafy K2 products that search far more like cannabis. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share