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Tecnifibre'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 18/1.18 Tennis String (Red) Specs: