"The Tecnifibre Black Code is a 3rd generation polyester string designed to have better elasticity, which delivers more pop, a bigger sweet spot and less shock at impact. The string also has a pentagonal shape for increased spin and feel. It's aimed at frequent string-breakers and can be used as the durability half of a hybrid.

Functional Benefits:
1. More FLEXIBLE - less shock on impact compared to 2nd generation polyesters.

2. More TOLERANT - less risk of premature breakages from off center hits due to an increased sweet-spot.

3. More SPIN - due to pentagonal structure.
4. More DURABLE – due to the special mixture of materials.

Gauge: 1,18 / 1,24 / 1,28 mm
Black"