Yonex Nanoray Z-Speed is the perfect Racquet for players that put power and speed above all else. Thanks to the superb Aero Frame, the Z-Speed cuts through the air quickly and gives you fantastic reactions, letting you play effortless lifts, blocks and drives. This Racquet has one of the thinnest top head frame structure compared to other Yonex Racquets for greater head swing speed and a thicker bottom frame structure of the head for maximum repulsion. Combined with their advanced technologies X-Fullerene on the shaft and Sonic Metal on the head frame, the combination of aero-frame design, weight distribution and high-end materials allows the player to produce a fast and controlled swing that generates powerful, accurate and rapid shots and, yet, recover in a flash increasing the player’s performance and speed in a rally. Specification: Flex – Extra Stiff. Frame – HM Graphite, Sonic Metal, EX-HMG. Shaft – HM Graphite, Nanometric, X-Fullerene. Joint – New Built-in T-Joint. Length – 10mm Longer. Weight / Grip – 3U (85-89.9g) G4. Color – Lime/Yellow.