TOURNA BIG HITTER Black Zone is a ultra-smooth co-poly crafted with the latest advancements in string materials. Heat Treatments strengthen the molecular bonding to keep the surface smooth. A smooth surface facilitates snap-back to generate more spin, power and feel. Smooth surface also makes it ideal for hybriding with softer nylon strings since it will not bite into the strings causing breakage.
Trustpilot
2 weeks ago
2 months ago