Signum's Poly Pro Plasma is a breakthrough of plasma technology that enhances the comfort and gut-like elasticity. Pro Plasma is made from a material with new molecular structure proving substantial elasticity with excellent tension holding, and durability. Players will enjoy the benefits of this arm-friendly powerful Polyester string.

The TE playtesters raved about the elasticity and comfort this poly string provided, some describing it to have the softness of a string like X-One Biphase by Tecnifibre.

The Signum Poly Pro Plasma is our Tennis Express String of the week! Also string of choice for Wimbledon quarterfinalist Yen-hsun Lu!