Tourna Big Hitter Black Zone is a new ultra-smooth co-poly string crafted with a special thermal heat treatment that strengthens the string and keeps the string smooth throughout the rough play. The ultra-smooth surface makes it the perfect string for hybrids.
- Ultra smooth co-poly.
- Perfect string for hybrids.
- Gauge: 17g 1.25 mm
- Length: 40 ft. / 12 m
- Colour: Black