X-One Biphase 18G/1.18 String Red

Tecnifibre X-One Biphase 16 is Tecnifibre's flagship playability tennis string, and for good reason. With plenty of technology packed in for maximum power, feel and comfort, this string is even a great choice if you suffer from arm pain.

• Biphase process offers 20% increased durability.
• Multifilament Synthetic string.