The goal of the GT Rock project was to come up with a top-quality string for advanced club players, who need extra power on their shots and high comfort of play, while maintaining good control. And we found it. The Rock string is a result of hundreds of tests of different chemical compositions. We called it the ROCK, as this string simply rocks! Try it out and...
Recommended for advanced club players and semi-pros.
Designed in co-operation with a leading European laboratory.
Result of an innovative approch to the production process of polyester tennis strings.
A perfect combination of comfort and power achieved by using the worlds's most innovative technologies, allowing for polyester structural bonds.
1000+ hours of tests
Tested by pro and club players
-the tension structure was changed, ensuring an adequate degree of plasticity.
Gauge: 1,25 mm