Rubber.
Rubber is known for its ability to bounce, and how strong it is. A tennis ball is used for the sport of tennis. It needs to be able to bounce, and be strong and sturdy so it can be hit. That is why rubber is a major use in a tennis ball.
rubber and air
It's tennis ball.
now rubber
A tennis ball has rubber and felt, which is stuck on with an adhesive. For logos, black ink.
rubber and green fuzzies
A tennis ball is made of cotton backing, a combination of wool and nylon, and rubber.
I didn't even think that they were made of rubber......lolz
by the kind of rubber
A tennis ball, is a hollow piece of rubber, coated with a thin layer of felt(the yellow stuff)
The tennis ball is made from a mixture felt-rubber; the internal gas is air.