Tourna Big Hitter Zone

The Big Hitter Black Zone features an ultra-smooth surface that reduces friction against your cross strings. This prevents the main strings from sawing into or biting the crosses, which significantly extends the lifespan of your hybrid string job.

It is designed to balance both. The co-polyester construction provides the control needed for aggressive, fast swing speeds, while the snap-back effect generated by the smooth surface helps you generate extra power and spin on your shots.

While it is a polyester string, which is generally stiffer than multifilament options, the thermal heat treatment process creates a more refined feel. It offers a comfortable response for a co-poly, though players with arm sensitivity should still be mindful of tension.

The 16g (thicker) gauge offers more durability and control, making it a great choice for heavy hitters. The 17g (thinner) gauge provides a slightly softer feel and better bite on the ball, which can enhance your spin potential.

This process reinforces the molecular structure of the string. It helps the string maintain its tension and surface integrity longer, ensuring that the snap-back performance remains consistent even after several hours of play.