The yonex ezone dr 108 tennis racket features an oversized 108in2 6967cm2 head and has been designed to provide players with increased flex repulsion and a bigger sweet spot delivering dynamic power the racket uses dual shut system technology for reduced vibration and ensures accuracy on off centre hits thanks to isometric technology the slightly head heavy balance and extended length result in more power while an oval pressed shaft technology gives you more spin the racket comes strung