NR419 NILS badminton racket is designed for advanced players. The graphite structure significantly improves stability and strength of the racket, and greater control of strokes and their precision is provided by the ISODYNAMIC technology. Durability of the racket is also a direct result of its one-piece structure. Applied materials also result in lightness and flexibility of the racket, which has a direct impact on the quality and comfort of the play. ISODYNAMIC - this term defines the distinctive shape of the racket's head. Its so-called a sweet spot or central tension area, and it ensures optimal shuttlecock hitting. It is 32% larger compared to a traditional shape racket. Extremely slim shape of the NR419 racket reduces the air resistance, thus, increasing overall power and playing performance.Specification: Body material: graphite Shank material: graphite One-piece structure Technology: ISO Dynamic Length: 67cm Weight: 83 g Main strings: 8-9 kg (18-20 lbs) 10-11 kg (22-24 lbs) Cross strings: 10-11 kg (22-24 lbs) Handle thickness: G2 (85 mm) Full cover included Remarks: Not intended for commercial use Guarantee 24 months - warranty does not cover tension Importer: Abisal Ltd. | Poland | 41-807 Zabrze | Pyskowicka Street 17 | e-mail: abisal@abisal.pl Abisal Ltd.. declares that the products sold by the company are safe and meet the requirements contained in the Act on General Product Safety of December 12, 2003. (Journal of Laws of December 31, 2003)