Signum Pro Polaris 200m string reel

Matteo Berrettini has been playing with the Signum Pro Firestorm for a long time. Since he is very successful with it, Signum Pro has decided to produce a new string that is very close to the Firestorm, but has been improved in some characteristics. With the new Signum Pro Polaris you can add some more power to your game, striking with a fresh neon yellow. The string is available in 4 diameters.