The particularity of this range is to present a wear indicator, which allows the player to change the string before the complete breakage. These strings are renown and appreciated for their power, their comfort and their strong ability to retain their qualities over time. Thanks to the assembly of several hundred microfilaments, impregnated to the heart in liquid polyurethane, Tecnifibre offers players the opportunity to gain in power and performance. Main material: Polyamide, polyurethane, silicone finish Recommended tension between 22 and 25 kg Maximum tension: 32 kg Not recommended for heavy string breakers (< 10 hours of play). String made in France. PU 400: 400% stretch for great comfort and dynamic performance.  1 central core: Specific construction with a larger diameter to provide durability and firmness. PHP stands for Polymer High Performance. This provides greater resistance to shocks and good tension resistance. Polyamide fibers (985): Guarantees elasticity and touch of the ball when combined with PU 400. They provide tolerance in the event of off-center hits. SPL final coating Anti-abrasion coating for more resistance. This string lasts up to twice as long as a standard string. They provide tolerance in the event of off-center hits. SPL final coating Anti-abrasion coating for more resistance. This string lasts up to twice as long as a standard string. They provide tolerance in the event of off-center hits. SPL final coating Anti-abrasion coating for more resistance. This string lasts up to twice as long as a standard string.