NBL6513 are speeder-type shuttlecocks for playing crossminton. These types of shuttlecocks are heavier, shorter and narrower than standard shuttlecocks. They have to be that way to make the game dynamic. Their specificity allows for smooth play even in windy conditions. The base of the shuttlecock is made of rubber, while the basket is made of nylon. This combination provides excellent aerodynamic properties as well as excellent handling and control of the shuttlecock's flight. Shuttlecocks NBL6513 are intended for amateur and professional play.Specification:Basket: nylon Basket length: 41 mm Basket diameter: 52 mm Base: rubber Shuttlecock weight: 7 g Packaging: tube / 3 pcs.Marks: Not intended for commercial use 24 months warranty 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)