NANOSPEED 6600 YONEX Badminton (Racquet Unstrung) NANOSPEED is our most 'head-light' series. It is designed for players with a naturally quick swing and a sharp attacking playing style. NANOSPEED facilitates a fast swing and sharp offensive play via the exceptionally light head. MAXIMUM ELASTICITY FOR BIGGER CLEAR SHOTS FULLERENE, LSC SYSTEM, ISOMETRIC, SOLID FEEL CORE, AERO FRAME, BUILT in T-Joint, FX PLUS