[X-ONE BIPHASE 17/1.24] The X-ONE BIPHASE string is the best performing string in this range on the 3 criteria of playability, durability and integrity. The special feature of this range is the wear indicator, which allows the player to change the string before it breaks completely. This indicator is manifested by the significant fraying of the string at the point of impact of the ball. These strings are renowned and appreciated for their power, their comfort and their strong capacity to preserve their qualities over time. Specification: • Colour : Natural • Gauge: 17/1.24mm • Length: 40ft/12m • Composition : Multifilament (Polyurethane - PU 400, H2C fibers, Biphasic treatment) • Recommended tension between 22 and 25 kg • Maximum tension : 32 kg Technologies : PU 400 : 400% Elasticity for high comfort and dynamic performance. Elastyl Fibers (50%) : Provide ultimate elasticity for maximum power.+12% elasticity vs standard PA H²C Fibers (50%) : Maximized performances with high temperature for the best tension holding. Biphase Process : Prestretched exclusive process to offer upgraded tension holding and durability. Visible and touchable on the string , it generates spin effect. String made in France. Not recommended for heavy string breakers ( lt; 10 hours of play).