Kirschbaum Helix tennis string (12 m)
Kirschbaum Helix is a monofilament tennis string made by Kirschbaum. Its construction is similar to natural gut strings. Thanks to the use of a special multi-stage manufacturing technology consisting of hexagonal twisting of fibres combined with heating, a string with unique properties has been achieved. The multi-stage twisting process provides increased string flexibility, which in turn delivers excellent playability and outstanding feel at the moment of impact. An additional heating process stabilises the polymer properties of the string, ensuring better control and longer tension retention. Excellent playability, an optimal combination of power and control, durable tension and stability.