There are 3 products.
A newly developed, softer high-performance and versatile polyester string designed to offer more control while still generating extreme power and intense spin and bite.
A newly developed, high-performance and versatile co-polyester string designed to generate extreme power and intense spin and bite.
GAMMA iO offers exceptional power, access to spin and pinpoint control. Its unique co-poly material takes ball pocketing to a new level, providing ideal levels of response and comfort. GAMMA iO is best suited for players with penetrating and punishing ground strokes from both sides.
