balls ko gucha khelchan, whatev bro...timi lai teti pani tha theye na? thukka, laazai marda..... hehehh, just kidding Wateva bro, like blood, kidney, eye etc transfer....they use those ball on manche who needs it when they loose on a accidents or catch on fire due to high friction. so, people will donate one kidney, blood, but obioulsy, ppl are not going to donate their balls, so doctors use boka's balls re, mailey ta tai suney ko hu....