Introducing the ISOSPEED Black Fire S 17 String (1.25), a powerhouse of precision and control for tennis enthusiasts seeking an edge on the court. Crafted with advanced materials, this string delivers a perfect blend of power and spin, allowing players to dominate every rally. The 17-gauge thickness provides optimal feel and responsiveness, ensuring a crisp and clean contact with the ball. Engineered for maximum durability, the Black Fire S stands up to the rigors of intense play, making it a reliable choice for competitive players. Its sleek black color adds a touch of style to your racket, making a statement on the court. Elevate your game with the ISOSPEED Black Fire S 17 String – the ultimate choice for players who demand precision and performance in every shot.