The Tecnifibre X-One Biphase Unlock effortless power, exceptional comfort, and a premium natural-gut-like feel. X-One Biphase delivers outstanding touch, responsiveness, and tension stability, helping players generate easy depth while maintaining control and feel. The 200 m (660 ft) reel strings approximately 16 racquets, depending on racquet size and string pattern.
- Shape: Round
- Gauge: 16g 1.30 mm
- Length: 660 ft. / 200 m
- Construction: Multifilament
- Composition: Polyamide core with polyurethane
- Colour: Natural
- Made in France