Spin it any way you want. The HAWK TOUCH ROUGH Tour String, the perfect string for high-level versatile players, has a rougher surface that provides more bite and increases the spin on the ball. Thanks to the innovative Crystal Core Technology, a manufacturing process that allows to influence each string's individual balance between power and control, the HAWK TOUCH ROUGH monofilament string features a bigger crystalline inner core responsible for providing ultimate touch and control to your game. If versatility is your game's middle name, this one is the perfect string for you.