This racquet is prestrung with E-Force Oxygen 17G. Hi-Octane Boosters: Stabilizing tubes on 7 of the cross strings create a solid stringbed increasing stability over the entire hitting surface. Hi-Octane Boosters provide increased overall power, higher performance, a more solid stringbed, more power on off center hits along with increased shot accuracy and ball control.

Powerhouse Shaft Technology: The shaft above the grip has been extended, while maintaining 22" mainstrings, for more whip and more power at the point of impact.

Extreme Longstring: Mains Extend in free space from head through handle for lethal power. Crosses anchored at outside edge of frame.

Zero Richter Tubes: Mainstrings are enclosed in 84" of vibration-dampening tubes hidden in handle.

By-Pass Stringing System: Mainstrings skip every two holes so the ball does not directly strike two main strings at once, thereby increasing power.

Launch Pad: Eliminates unnecessary deflection-limiting cross-strings in racquet throat for improved power.

Dual Cylinder: Patented construction offers incredible power and string bed deflection for a solid, stable hitting platform.

Hi-Compression Wing: A 30% thinner frame for quick response, maneuverability and faster swing speed.

Fiber Alignment (FAT) Zones: Pushes out and aligns fibers in high-stress curved areas of frame for more strength and power.

Total Carbon Head: Adds stiffness, durability and power. Paint and non-structural materials replaced with additional carbon graphite.

Tri-Carbon Frame: Increased stiffness, power and durability are achieved by using an optimum blend of three light, stiff, carbon graphites.

Graphite Fiber: Stiff, strong graphite fibers reinforce and strengthen the frame to control flexibility and add more power.