Read this tip to make your life smarter, better, faster and wiser. LifeTips is the place to go when you need to know about Tennis Balls and other Tennis topics.
The ultimate long-lasting tennis balls have solid, rubber cores. Often called "pressureless", these balls are a good choice for people who play infrequently, as they do not lose their liveliness over time since there is no air inside them to escape. They do have to be replaced occasionally, however, since the felt will wear out. Penn tennis balls or Tretorn tennis balls are usually a good long lasting choice.