Wilson Championship Tennis Balls

Extra Duty refers to the specific felt construction designed for abrasive surfaces like hard courts. These balls use a thicker, more durable felt that resists fraying and wear significantly better than standard felt, which is typically optimized for softer clay or indoor surfaces.

While you can technically use them on clay, they are not optimized for it. The thicker felt on Extra Duty balls tends to pick up more clay dust, which can make the ball feel heavy and 'fluffy' much faster than a regular duty ball would.

The rubber blend core is designed to maintain bounce and consistency for recreational play sessions. However, like all pressurized tennis balls, they will begin to lose their bounce once the can is opened and the internal pressure equalizes with the outside air.

Yes, the 24-can pack (72 balls total) is an excellent choice for coaches, frequent players, or clubs that need a reliable supply for practice drills and matches. The Dura-weave felt ensures the balls hold up well through the high-volume usage typical of training sessions.

Yes, the balls are packaged in pressurized cans to ensure they remain fresh and bouncy until you are ready to use them. It is important to keep the cans sealed until you are actually on the court.