Tourna Big Hitter Silver is a German-engineered soft and durable polyester. It allows you to take huge, powerful swings while keeping the ball in the court. Big Hitter is highly rated for durability and resistance to movement, so your strings won't slide, increasing power and string life.
Premium German-made co-poly tennis string
Highly rated in resistance to movement, tension maintenance, and durability
Less powerful than Big Hitter Blue; more control oriented with great spin