The Genesis Black Magic String leads the pack among co-polyester strings on the market today. Offering a superb balance of power and control, Black Magic is bound to raise your game to a new level. This string excels when it comes to feel. Most polyester strings today have one major flaw: they have no feel! Black Magic is the answer. Softer than most co-polys, this is a great string for players that are looking for a comfortable poly offering a serious punch. A surprising combination of power, control, comfort, spin, and tension maintenance. Arguably the best performing co-poly string available in a solid black color. Tension maintenance is excellent.