The Yonex ASTROX 77 Metallic Blue badminton racket is a little more head light racket offering faster reaction and swing speed compared to the ASTROX 77 Shine Yellow badminton racket. Astrox rackets are an attack-oriented model which can take the lead in a high-speed game with a design that can deliver powerful, steep smashes, allowing you to dominate the court. The new ASTROX 77 racket is equipped with Rotational Generator System. The counter-balanced head adapts to each shot, helping you to control the drive and to attack the opposition with increased acceleration, steeper angle and power on the smash.

ASTROX 77 uses the worlds first, new dimension graphite material, Namd, which greatly improves the adhesion of the graphite fibres and resin by attaching nanomaterial directly to the graphite fibre.

ASTROX 77 uses the world's-first, new dimension graphite material, Namd, which greatly improves the adhesion of the graphite fibres and resin by attaching nanomaterial directly to the graphite fibre.

In high performance racquets, it is common to combine nanomaterials with resin that connects graphite fibres, but in Namd, nanomaterials are directly adhered to the graphite fibres and the degree of adhesion between graphite fibres and resin is greatly increased. This major improvement produces a shaft that flexes and stores energy, delivering explosive force on impact with the shuttle.

From the initial movement of the player to the impact, the new dimension graphite is difficult to harden, and the shaft extends and accumulates energy due to the speed of the fast swing. Since the follow-through of the swing is smaller after direct impact with the shuttle, the swing speed drops and the new dimension graphite regains hardness and strengthens the resilience of the shaft, allowing the energy to explode rapidly before returning to its original state.

By applying the counterbalance theory, weight is distributed throughout the grip end, frame top and the joint for maximum control. The transition to the next shot can be performed smoothly with a rapid succession.