Prince PHANTOM PRO 16 Tennis Graphite String, 7JJ035,

New materials for long-lasting playability. Excellent snapback performance makes these strings the ultimate for hard hitters. This high-power, next-generation polyester string is made from a new, heat-resistant polymer with a special processing and silicone coating. It maintains tension for improved durability and performance. For power hitters, it provides a sense of hold, which gives a sense of popping, and for volleys, it provides a strong sense of bounce.