Made from uniquely refined co-polymer polyester with a soft molecular construction, Head Sonic Pro string offers superior control and touch for extra pop and spin. This exceptionally durable string offers excellent response and playability that make a real difference. Made for perfect control, without sacrificing touch or feel.

• Length: 40 ft. (12.2m)
• Gauge: 17 (1.30mm)
• Colors: White, Orange, Black