Match the power of the modern game with the Volkl Vostra v9 305g! This tennis racquet combines power, spin, and control to give you the confidence to 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 305g! Racquet Technology Red Cell: Composite material placed in the hoop and throat of the racquet provides the perfect blend of strength and elasticity for a softer feel at contact with added power. V-Engine: V-shaped throat adds stiffness to the yoke for more power, stability, and control. Super Grommet System: provides more control by extending dwell time, increasing the sweet spotandoffering more speed from energy return. Precise Power: Beam shape uses a classic beam design combined 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.