Tecnifibre X-One 4B Tennis Balls
As the only ball in the market that boasts 72% natural wool and cotton in its felt, the X-One 4B guarantees unparalleled comfort and exceptional quality.
With its superior felt coating and evenly distributed wear, this tennis ball exhibits longevity that significantly outperforms other competitors.
The X-One 4B balls are the official choice of notable tennis federations and numerous ITF and ATP tournaments. Their quality and performance have also earned validations from the International Tennis Federation (ITF).