Tecnifibre NRG^2

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The NRG² was designed with a special purpose in mind: to be the engine of the racket! This is the primary meaning of NRG², the most powerful string in the range. Key Features: Spec ific Construction: More than 1200 microfilaments made of Elastyl (12% more elastic than standard polyamide). Impregnated with 400 polyurethane to generate power and comfort. Exclusive S.P.L Surface Treatment: Provides slip and effective snap back, so you don't have to re-string during play. 1.32 Gauge: Guarantees increased resistance. Welcome to NRG²! String made in France Technologies: PU 400: 400% elasticity for great comfort and dynamic performance. Elastyl Fibres (100%): +12% elasticity compared to standard PA, providing enormous elasticity for maximum power. S.P.L Final Coating: Anti-abrasion coating for more resistance. BEST SELLER USA Among the top 10 best sellers for over 20 years among specialists. Show more