I purchased several of these tattoos for a swim birthday party.  Out of the 8 different tattoos, only 2 did not come off within the first 1/2 hour! I wasted $40 on "water proof" tattoos that came off at the slightest rub and in the water!  Only the butterfly and seahorse seemed to be of any quality.

great graphics, really quick and easy to apply and they last pretty much as long as you want them to.