When you put these strings on your racquet, you better already have things under full control.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 monofilament string features a bigger crystalline inner core responsible for providing ultimate control to your game.Designed for high-level Tour and tournament players, the string´s elasticity allows for accurate feedback and exquisite feel so you can follow through with your versatile game and perfectly control every stroke and, ultimately, the game.If high-level control is your game, HAWK TOUCH is your string.