Tecnifibre X-One Biphase Tennis String Set
Tecnifibre X-One Biphase provides shock absorption and optimum comfort.
X-One Biphase extends string life by 20% with patented Biphasic technology.
Gauge: 16 / 1.30mm, 17 / 1.24mm, 18 / 1.18mm
Colour: Red, Black or Natural