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Sonic Pro delivers a softer feel than most poly strings — great for reducing arm strain
dipping ball trajectories
✅ Low-Powered for Big SwingsPerfect for aggressive players who take full swings and need a string that keeps the ball inside the lines
this string provides outstanding shock absorption
This ultra-premium string combines thousands of high-performance polyamide microfilaments arranged in four distinct spiral patterns
Yonex Polytour Tough 16GA 1.25mm Sonic Pro delivers a softerYonex Polytour Tough 16GA 1. 25mm Tennis String Built for Durability. Designed for Power. Yonex Polytour Tough is engineered for players who demand exceptional durability and consistent performance, even with aggressive strokes. Featuring a firm, high resilience co polyester construction, this string offers outstanding control, reliable tension maintenance, and reduced string movement for consistent power throughout long matches. Key Features 1.
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