Tecnifibre X-One Biphase Tennis String Reel of Natural 16g 1.3mm Tennis Racquets meet speed with Altra’s first

meet speed with Altra’s first ever speed shoe

Specially reinforced polyurethane elastomer material

training session after training session

V Speed: 40

soft monofilament belt

Tecnifibre X-One Biphase Tennis String Reel of Natural 16g 1.3mm Tennis Racquets meet speed with Altra’s firstThe bi phase X one tennis string is the highest level of power and control. The X ONE BIPHASE string is the most efficient in this range on the 3 criteria of playability, durability and integrity. The particularity of this range is to present a wear indicator, which allows the player to change the string before the complete breakage. This witness is manifested by the significant fraying of the string at the place of the impact of the ball. A leading