Liquid K2, a variety of artificial marijuana that causes erratic habits when smoked, is being smuggled to inmates with the mail, sprayed on letters and internet pages of publications. This kind of K2 is much more challenging to detect than common leafy K2 products which appear far more like marijuana. https://www.tumblr.com/factsabouteverythingseo/748651429729812480/strongest-k2-spray-on-paper-strongest-k2-spray?source=share