Tecnifibre Black Code 18 Tennis String

Tecnifibre Black Code uses ThermoCore technology to create a more elastic polyester core, reducing shock and offering better playability than most polyester strings. Pentagonal shape for increased spin and feel. 

Thermocore technology: soften the structure.
Pentagonal structure: provide more spin.
An innovation in the polyester string process which allows the reduction of shocks and vibrations linked with the use of hard strings. 
Durable. Explosive (with the appropriate tension); and Generates SPIN like a tornado thanks to the HEX shape. Tecnifibre has set the trend with this new generation...

SPECIFICATIONS:

• Diameter: 18g (1.18mm)
• Length: 40 feet (12.2 meters)
• Colors: Black