They improved them a lot! If your question would be more specific, it would be easier to answer. The tennis balls used to be wads of hair or wool wrapped in stuff, but now they are more rubbery for bounce. I don't know exactly how.
just about all pets are prone to fur balls
How do you know it has "fur balls"? If the vet diagnosed it, they would have told you what the remedy is.
it doesnt it gets fur balls in its mouth from alot of fur it have and coughs it out
Fur.
no
The vomit may contain hair, but not necessarily balls of it.
I think lions cough up fur balls because cats cough up fur balls.
It will get dirt but when the balls are stroked hard by the players the dirt in the fur leaves it. So it seems to us that the ball is clean. At the same time it is not so clean as a new ball. some dirt will there. when we are seeing in the television it looks like the ball is clean.
Dinosaucers - 1987 Frozen Fur Balls 1-18 was released on: USA: 7 October 1987
Eek the Cat - 1992 Great Balls of Fur 1-9 was released on: USA: 7 November 1992
No,not that i no of :S im not sure..someone help me out :D