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Product Specifications


18 gauge / 1.20mm


40 feet / 12.2 meters

Item #


Style #


Item is returnable, but does not qualify for free returns.

Tecnifibre 4S 18 1.20

Built to deliver maximum spin, Tecnifibre 4S 18 1.20 tennis string will help you send the ball exactly where you want it to go. A unique production process delivers shock absorption and reduced vibrations. The combination of Thermocore technology and high density polyester creates high flexibility and tension maintenance. For the best combo of power and spin, choose the Tecnifibre 4S 18 1.20!

  • PU multifilaments provide 22% less arm fatigue.
  • 4% more powerful than TF poly average.
  • Official string of the ATP World Tour™