Compact Quad Voltaic System Frame designed to achieve the combination of heavy smashes and speedy racquet handling. Extra Slim Shaft 6.5mm creates faster, stronger and more intense shot. Special Features Isometric head frame Equalizes the length of main and cross strings in the stringbed, enlarging the sweet-spot for more consistent accuracy even on off-center hits. 76 Grommet Systems This single-pass grommet holes construction provides more grommet holes, creating a high-performance stringing pattern that puts 7% more durability. Compact Quad Voltaic Frame The frame has been made smaller to maintain the fast swing demanded by advanced players. By reducing the drag caused by air resistance, racquet handling speed is increased. Strengthened at 10, 2 , 5 and 7 o'clock area of the head, the racquet is designed to achieve the combination of heavy smashes and speedy racquet handling. Resulting in instant power during smash and making a full swing easy during short range rallies. Reinforced Structure Frame The new material is adopted in the frame in order to make the frame Ultra high Strength & Stiffness. As a result it can handle string tension of up to 38lbs. Extra Slim Shaft 6.5mm Cutting edge nano carbon technology is used to produce an ultra-thin, ultra-tough, aerodynamic shaft, created for a faster, stronger and more intense shot. Fused Grommets Provides the racket increased power and extra kick on impact with slightly heavier head, and at the same time gives it a trendy design. Build-In Graphite T-Throat Enhance stability and power of the racket.