What is so special about this racket?
 
Traditional rackets have a hollow shaft.
The Astrox 100 ZZ, on the other hand, has a solid core made of carbon. This allowed Yonex to create the thinnest shaft in its production history. The ‘Hyper Slim Shaft’ (patent pending) reduces air resistance as much as 11.8%, Yonex claims. The solid core also increases the resilience of the racket; this will allow a player to hit hard smashes one after another. Evolution of “rotational generator system” The trademark rotational generator system of the Astrox series has been further improved on this racket. A Black Micro Core is used the top of the frame of the racket along with a much lighter T-Joint. This increases rigidity by 4% and dampens vibration by 2% when hitting a shuttlecock. Improvements in the Isometric shape The box shape of the isometric racket frame has been further improved. The sweet spot on the Astrox 100 ZZ is increased by a further 2.9% while maintaining the same overall frame size as other rackets. Its structure suppresses torsion of the racket. In addition, the shape of the cap accommodates and assists the thumb. This will be a very useful feature, especially for the doubles players.