When stringing your racquet with these strings, it is advisable that you know what you are 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 into play. The string was developed for outstanding tour and tournament players. Its elasticity enables precise “feedback” from the string and an excellent playing feel. It supports your versatile game perfectly, so you control every shot and ultimately the game. If extreme control is your thing, then the HAWK TOUCH is your string.