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it takes a pounding
this model oscillates vertically
The Stringmeter eliminates the guessing
poison ivy and blisters
A textured surface provides optimum ball control
Tecnifibre X-One Biphase 18 1.18 Features_Programmable Drills it takes a poundingTecnifibre X One Biphase 18 is Tecnifibre's flagship playability tennis string, and for good reason. With plenty of technology packed in for maximum power, feel and comfort, this string is even a great choice if you suffer from arm pain. The 18 gauge is even thinner for increased feel on more precise touch shots. Biphase process offers 20% increased durability. Multifilament Synthetic string.
