Liquid K2, a kind of synthetic cannabis that triggers erratic behavior when smoked, is currently being smuggled to inmates from the mail, sprayed on letters and web pages of guides. This form of K2 is way more difficult to detect than classic leafy K2 products that search more like cannabis. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share