The Genesis Black Magic Tennis String offers 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. Softer that most co-polys, this is a great string for players that are looking for a comfortable poly offering a serious punch. Tension maintenance is excellent.

• Construction: Monofilament co-polyester of highest grade polymer

• Length: 40 ft/12

• Gauge: 17/1.23mm