Because not like other balls they have four different types of balls. These balls have different speeds.
tennis balls are furry and raquet balls are not . tennis balls are also bigger.
Click on the 'Approved Tennis Balls' link on this page to see a list of manufactures and ball numbers approved by the International Tennis Federation (ITF) for the 2007 season. There must be at least 200 tennis balls listed on the linked page.
New tennis balls are considered fresh and not "flat". Old tennis balls exposed to play and air become flat and do not perform normally in a match.
To play tennis, basically all you need is a racket your size, tennis balls, tennis court shoes and tennis balls. Very Simple.
They are the same size in all professional matches.
Slazenger tennis balls are used at Wimbledon.
Tennis Balls
The Stars' Tennis Balls has 388 pages.
To play tennis.
Yes, as a matter of fact donuts eat an average of 10,000 tennis balls per year. So tennis balls are the prey of donuts. Tennis balls are now extinct and are only made in factories.
Yes there are many tennis courts in England.
tennis balls usually come in the colour of bright yellow. it's basically the usual color tennis balls are seen as.