The YONEX Astrox 100 ZZ Badminton Racquet is a special limited edition colour for this popular badminton racquet. The Astrox 100 ZZ is purely designed for advanced players. The YONEX badminton racket is designed with the Hyper Slim Shaft and an improved Rotational Generator System. Key Features: NAMD: New Revolutionary Material, Utilizing high-quality Namd graphite throughout the frame, produces more flex with a faster snap back, unleashing steep and dramatic power. ROTATIONAL GENERATOR SYSTEM: By applying the counterbalance theory, weight is distributed throughout the grip end, frame top, and the joint for maximum control of the YONEX Astrox 100 ZZ Badminton Racquet. The transition to the next shot can be performed smoothly, with rapid succession. ENERGY BOOST CAP PLUS: Uniquely shaped cap of YONEX Astrox 100 ZZ Badminton Racquet, which maximizes shaft performance. The front allows the shaft to flex, while the side arch-shaped curve stabilizes the racquet face by preventing the shaft from twisting. AEROBOX Frame: A combination of faster swing speeds and a solid feel. 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 YONEX Astrox 100 ZZ heavy? If we compare the Astrox 77, Astrox 99 and Astrox 100ZZ, in terms of head-heaviness, the Astrox 77 is the lightest, followed by the Astrox 100 ZZ, then comes the sledgehammer, and lastly, the Astrox 99.