Ideal for junior competitions, the Wilson US Open Green Tournament tennis balls are fractionally more forgiving than standard balls, catering to confident young players, juniors 11 years and up and improving adult beginners.
They're also a high quality option for anyone that prefers a slightly reduced bounce and slower speeds to improve performance and fine-tune technique on full-sized courts.
It's a great 'transitional ball' with easier playability compared to a standard adult tennis ball, but greater difficultly when put side-by-side with junior-only tennis balls.