Due to increasing security in prisons and borders, we have redesign k2 papers to k2 greeting cards that come as i miss you cards or happy birthday cards. This will ease smuggling into prisons. Buy the strongest k2 liquid spray on paper in the form of i miss you card and send to your boyfriend in jail. Each A4 sheet is infused with 25 ml=0.845351 fluid oz of odorless and colorless liquid K2. To buy plain k2 sheets click here