Tecnifibre Black Code 4S (17-1.25mm) String Set


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Tecnifibre Black Code 4S (17-1.25mm) String Set:

Built to deliver maximum spin, Tecnifibre Black Code 4S 16 tennis string will help you send the ball exactly where you want it to go with a square-shaped section. A unique production process delivers shock absorption and a reduction in vibrations. The combination of Thermocore technology and high density polyester creates high flexibility and tension maintenance.

Black is Back! With Black Code 4S, Tecnifibre gives big hitters a durable, low-powered co-poly with MASSIVE spin potential, impressive tension maintenance and great feel (especially for a firm monofilament). Boasting a square profile and sharp edges, this string puts a very tight grip on the ball. Topspin players will be able to hit high-arching, spin-loaded balls that come down sharply and explode off the court. For this string Tecnifibre uses Thermocore Technology, a multi-stage heating technique designed to soften the structure and reduce harsh impact vibrations. This helps explain why our playtesters were so impressed with the comfort level. Players looking for a durable co-poly with phenomenal control and spin-potential should definitely give this one a serious look.


  • PU multifilaments provide 22% less arm fatigue.
  • Official string of the ATP World Tour™.
  • Composition: Co-polyester with Thermocore Technology.
  • Diameter: 17g (1.25mm)
  • Length: 40 feet (12.2 meters)
  • Colors: Black
Weight 0.10 lbs
Dimensions 1 × 1 × 1 in


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