Tecnifibre X-One Biphase Squash String is their latest premium string. Gives the ultimate performance of power and feel with a longer string life and increased spin and you get tremendous control and lasting tension.

Trimerized PU & H2C fibers hold tension better with increased control.

Material: 50% Bastyl Fiber, 50% H2C Fiber

Composition: Composite Microfilament, Biphase Process
Length: 660 feet (200m)
Gauge: 18 (1.18mm)
Elastyl Fiber for increased power