Elevate your game with the Tecnifibre X-One Biphase 17 tennis string reel. This 660-foot reel features a natural color and a gauge of 1.24mm, making it perfect for players seeking a blend of power and comfort. The unique Biphase technology enhances elasticity and durability, providing exceptional feel and control on every shot. Ideal for all playing styles, this string offers a soft touch while maintaining impressive tension stability. Whether you're a competitive player or a weekend warrior, the X-One Biphase will help you perform at your best on the court.