When the perfect balance of control and explosive power comes together in a string, we call it HAWK. This monofilament strings inner crystalline core, which influences control, and the outer molecular chains, which influence power, are perfectly balanced thanks to the innovative Crystal Core Technology, a unique manufacturing process. Highly durable and with high spin potential, these strings are the perfect weapon for the high-level Tour and tournament player. After all, with great power comes great responsibility.Specifications:- Length: 200 m / 660 ft- Weight: 18 g, 1.25 mm