When you string your racquet with these strings, it's advisable that you know what you're doing. Thanks to the innovative Crystal Core technology, a manufacturing process that influences each string's individual balance between power and control, the HAWK Touch monofilament string has a larger crystalline core, bringing ultimate control to the game. The string was developed for outstanding tour and tournament players. Its elasticity allows for precise "feedback" from the string and excellent feel. It supports your versatile game perfectly, allowing you to control every stroke and ultimately the game. If extreme control is your thing, then HAWK TOUCH is your string.