Black7 – Best-in-Class Spin String for Maximum Rotation Engineered to deliver more spin than any string ever tested, Black7 earned the #1 SPIN String title in USRSA Blind Playtests—no contest.
#1 Spin Generation: Tops every competitor in USRSA’s blind trials for unrivaled ball rotation
Seven-Edged Precision: Unique heptagonal profile bites into the ball, unleashing explosive topspin
Medium Power Balance: Perfect blend of pop and control, so you can rip massive cuts while maintaining pinpoint accuracy
Arm-Friendly Co-Poly Construction: Soft polymer build lets you string a full bed without taxing your elbow
Control Meets Bite: Merges surgical shot placement with spin-driven performance
Instant Upgrade: Swap in Black7 to take your topspin game—and your results—to the next level
