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      Product Specifications

      Color

      Purple

      Gauge

      17 Gauge

      Length

      40 feet / 12.2 meters

      Item #

      012120

      Style #

      SS004124

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

      Signum Pro Thunderstorm 17 (1.24)

      The new SIGNUM PRO® Thunderstorm 17 gauge tennis string offers players a unique, 10-sided shape with high levels of spin, power, and control.

      This High-Tech Co-polyester string provides minimum tension loss, excellent ball control, with high dynamic power.

      Because of the very low tension loss for a long time SIGNUM PRO recommends stringing with 10% less tension than usual polyester and nylon strings.