The Yonex RQiS 2 Tour is a state of the art tennis racquet that features many innovative technologies from Yonex. With the Isometric technology, the sweet spot of this racquet is 10% bigger than an ordinary round head racquet. This unique square head shape reduces the inert space found in a conventional round frame, and allows the racquet to swing easier with superior maneuverability. The Elastic Ti frame snaps back to its original shape in a split second after impact and deflection, which provides more power and accuracy.The Soft Grommet and Shockless Grommet technology soften impacts to eliminate excessive vibrations to produce a cleaner smooth feel.