Match the power of the modern game with the Volkl Vostra v9 290g!This tennis racquet combines power, spin andcontrol to give youthe confidenceto dominate opponents.Additional REDCELL material provides more power and an improved feel with every swing. Volkl's arm-friendly technology lets you play harder and longer with less fatigue. If you want to play with power on demand, swing the Volkl Vostra v9 290g! Racquet Technology Red Cell: Composite material in the hoop and throat provides the perfect blend of strength and elasticity for a soft and powerful feel. V-Engine: V-shaped throat adds stiffnesstothe yoke for more power, stabilityandcontrol. Super Grommet System: Provides more control by extending dwell time, increasing the sweet spotandoffering more energy return. Precise Power: Beam shape combines a classic design with a box beam construction to provide that classic Volkl feel while improving power. Revolutionary EVA (REVA): Material gives players a more lively and dynamic racquet. VTex: Silicone polymer butt cap works with V-Cell to increase comfort with every swing. Improves racquet dampening while resisting shrinkage and movement in high temperatures. V-Sensor: EVA molded mass dampener pendulum pin eliminates bad vibrations.