Tecnifibre X-One Biphase 17/1.24 Tennis String (Red) Gold and make their tennis serve

and make their tennis serve a fluid

Balance: Head Light

The advantage of PowerNick 18 gauge is the optimum combination of power and durability

Anchored by a laser focus on graphic design free of patterns and unnecessary elements

Tecnifibre X-One Biphase 17/1.24 Tennis String (Red) Gold and make their tennis serveTecnifibre's X One Biphase uses a heating process (H2C) which increases the cohesion between molecules allowing this string to have excellent power and exceptional feel. Their patented Biphase process extends string life by up to 20% and provides enhanced spin. Tecnifibre X One Biphase has been a best selling multifilament for years and continues to be an industry leader for players that want comfort and power. Tecnifibre X One Biphase 17 1. 24 Tennis