McLovin if u wanna try, buy one at price +/- 30$. aka this
Silicone Wristbands : Power Balance
lower than that, is used or the performance is not the same as the original.
but if you want on ebay there are many that shit from many country 5/6 $ . but of course it's not the same quality as the original.
i am interested too on that thing, but i would like too know some things...
this can be used on water? how many time it is useful? forever? or after x time, that wristband ends up?
thanks in advance