The Tecnifibre X-One Biphase Tennis Rope Set in Red is the ultimate synthetic rope and offers the playability closest to the natural bowel of any synthetic rope produced. Elastic fibres are used, which gives 12% more power than standard polyamide materials used in other synthetic cords. X-One Biphase has a unique technology that separates it from the other strings in the Tecnifibre line, Fibre H2C which involves a high temperature preset step to ensure greater tension maintenance. Enhancing their inner polyurethane technology, this chain features trimerised polyurethane, allowing even more comfort and touch for a natural gut feel. Many years of research have led to the two-phase process, a production process that increases the durability of the strings by 20%, allowing players to enjoy the benefits of this chain even longer. The most advanced synthetic rope on the market, X-One Biphase makes the playability of the natural bowel available in a synthetic alternative. X-One Biphase offers players more power, comfort and feel.