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4 mm (6% larger than standard 40 mm balls)
and other dynamic indoor sports requiring explosive movement and firm footing
FLYTEFOAM technology - Provides lightweight cushioning and impact absorption
which in turn delivers a slightly softer and more forgiving feel
ISOSPEED STRING GREY FIRE 16 1.30MM 12M (CUT FROM REEL) ITF APPROVED 4 mm (6% larger thanDESCRIPTION Like Black Fire, Grey Fire was developed with Tour Players. This string offers top control in addition to outstanding ball acceleration (Spring Load) and low tension loss. Low friction technology enhances your game with additional spin. Triple Heating ensures comfortable feedback and arm protection. TECH & FEATURES Control & Precision: The string offers exceptional control, allowing players to take full swings without fear of overhitting