The YONEX Astrox 88 D Pro Badminton Racket is designed for a player who wants to play aggressively during matches and generate a more powerful smash. Key Features: Namd (Revolutionary Graphite): A world-first, new-dimension graphite material, Namd greatly improves the adhesion of the graphite fibers and resin by attaching nanomaterial directly to the graphite fiber of the YONEX Astrox 99 Pro Badminton Racquet. In high-performance Racquets, it is common to combine nanomaterials with resin that connects graphite fibers. Still, in Namd, nanomaterials directly adhere to the graphite fibers, and resin is greatly increased. This major improvement produces a shaft that flexes and stores energy, delivering explosive force on impact with the shuttle. Rotational Generator System (Counterbalanced Weight Distribution): By applying the counterbalance theory, weight is distributed throughout the grip end, frame top, and joint for maximum control for the YONEX Astrox 99 Pro Badminton Racquet. The transition to the next shot can be performed smoothly, with rapid succession. Extra Slim Shaft (Thinnest, Strongest Ever Produced by YONEX): Cutting-edge NANOMETRIC carbon technology is used to produce an ultra-thin, ultra-tough, aerodynamic shaft created for a stronger and more intense shot. About Yonex: Yonex is a manufacturer of badminton rackets and other sports equipment. The company has been in business since 1968 and is known for its superior quality and attention to detail.” Is the badminton racket unstrung? Yes, the YONEX Astrox 88 D Pro badminton racket is unstrung.