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.
- Gauge: 17g/1.25mm
- Length: 660ft/12.2 m
- Composition: Co-polyester Monofilament (w/ Thermocore Technology)
- Color: Black