>>18581992it has to use an inflation devise put in the neo scrotum or a rod device (the advantage of a rod is that it is harder but is also hard when placed down, the disadvantage of the inflation device is that it does not get as hard as a biological penis) . A big flaw is that the phalloplasty can only ever get as long while erect as it is when it is flaccid, this is why trans men tend to use big grafts.