head hawk power 200m tennis string reel 1 25mm petrolThe Head Hawk Power is designed for high performance players who want to add even more control and explosive power to their game. The monofilament tennis string is more forgiving of off center hits and allows for a large sweet spot, while also being engineered to hold tension longer. Specification: Designed for high performance players Adds explosive power Monofilament string More forgiving for off center hits Length: 200 m 660 ft Thickness: 1. 25 mm