Product Features Silicone Oil Infused Grommet - for Rapid Snapback at Impact New Silicone Oil infused within the grommet allows the racquet to quickly flex and snapback into its original position. New Frame Shape (Thinner Beams) - for Faster Swing Speed and for Improved Feel The thinner beam allows for the racquet to easily cut through the air with minimal resistance. New Frame Shape (Enlarged Frame Top) - for Increased Topspin and Consistent High-Trajectory Ball Flight A 1.9% wider frame at the 2 o'clock & 10 o'clock position increases the ball contact area, which produces a higher launch angle. New Throat Design - for Added Control and Stability Minimal power loss at impact through efficient transfer of energy. Vibration Dampening Mesh (VDM) - for Added Touch and Precision A Stretchy Mesh Material is wrapped around the graphite within the grip to filter unwanted vibrations. Isometric - Signature Yonex Technology Compared to a conventional round frame, a square-shapaed ISOMETRIC™ racquet generates a 7% larger sweet spot that delivers greater control without sacrificing power.