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