I bought two packets of this paper last month in order to experiment with the design of a bespoke tattoo that I want but that I am frankly too embarrassed to ever discuss with a professional tattoo artist.
The kit includes five pieces of photographic paper and five pieces of some kind of sticky plastic, plus full instructions as to how to churn out tattoos with the help of your inkjet printer until the cows come home. Provided you plan your printing jobs properly, you can get a great many tattoos on one piece of paper.
Things went slightly awry on my first attempt, purely through my own stupidity; The photographic paper and the 'sticky' paper look a bit similar - if you are a bit thick like me. They say that the image should be left for at least an hour to dry properly. When mine was still wet to the touch after three days I at least had the brains to figure out why that may have been.
For reasons that are far too boring / downright embarrassing to go into, I have managed to keep a rather sizeable temporary tattoo of Grange Hill's Mr Bronson on my right bum cheek for well over a week now. According to the instructions, a week is just about the limit of this product's endurance. However, with some skilful showering techniques and the employment of some loosely elasticated underwear I have managed to set new records! It still looks as good as new, although of course I can only really keep an eye on things down there with the help of some low-level reflective surfaces.