I didn't know what prams where here there jus tanother name for strollers. I live in the United States and that's where I was born....more specifially in Pennsylvania but everybody I know calls them Strollers not Prams but whatever. I guess it's one of those things like for an example : soda/ pop lollipop/sucker Bottom line it's just where you're from people call the same things different names....in P.A. you call these one things GUMBANDS which in O.H. the same thing is called RUBBERBANDS.