You better have everything under control before you put Hawk Touch Tennis strings on your racquet. The Hawk Touch monofilament string uses the cutting-edge Crystal Core Technology, a manufacturing procedure that enables you to affect each string's unique balance of power and control. It has a larger crystalline inner core that gives your game the most control possible. The string's elasticity, which was specifically designed for high-level Tour and tournament players, provides precise feedback and an exquisite feel, enabling you to execute your diverse game and flawlessly control each stroke.