Tecnifibre 4S is a high-density co-polyester monofilament string on a 200m reel, engineered for the demanding player who wants maximum spin. Its square profile with sharp edges grips the ball for aggressive, spin-loaded shots, while Thermocore Technology softens the firm poly for better comfort and tension maintenance. This 1.30mm/16-gauge version offers extra durability, control and firmness.
- Gauge: 16 / 1.30mm
- Length: 200m reel (approx. 18 racquets)
- Composition: co-polyester monofilament, square profile
- Thermocore Technology for comfort and energy return
- Composition: co-polyester monofilament, square profile
- Length: 200m reel (approx. 18 racquets)