Material Construction: TTT with GraphitExtreme * Power Level 3200-3400.Power Plugs may be inserted into the top of the frame in 2 (increases power level by +100) or all 4 O-Ports (increases power level by +200). * Weight Unstrung - 170-176g Head Size - 106 String Pattern - DPR 14x 17 * Power Plugs can change the swing weight and stability of O3 racquets, resulting in greater overall power potential and reduced torque which improves power and control on off-center hits. * O-ports reduce aerodynamic drag, creating a fast and maneuverable frame with a lightweight feel for accelerated swing speeds enabling players to reach more shots and rip more winners than ever before. * This racquet ships pre-strung