Wilson Grand Slam Extra Duty tennis balls provide the longevity to survive your toughest matches and longest rallies

or paint to peel

power or tension

Contains numbers up to 8 to allow scoring for regular as well as 8-game pro sets

the Pro Penn Marathon Extra Duty is an excellent choice

Tourna Stage 3 Red 60 Pack Size_08078 Extra Wide (4E) Wilson Grand Slam Extra DutyPerfect for training and playing with your 8 year old & under tennis enthusiast, Unique Stage 3 Red tennis balls are perfect for the job. These low compression balls bounce 75% slower than regular tennis balls. 60 pack. Ideal for play on 36 foot courts. Meet ITF and USTA Quickstart specifications.