Recently upgrade to DR100 so I need to sell this one. Very light but powerfully generating spin. Also very arm friendly.Very good for beginner to intermediate level player. PreStrung with NRG2 ($21 value)Originally 4 3/8 but I did overgrip. It makes you feel 4 1/2 probably. At just over 10 ounces, this racquet glides through the air with remarkable ease, making it perfect for both strong beginners and intermediates. With its relatively compact head size (98sq.in), the VCore Si Team delivers a very controlled and predictable response. The exceptional maneuverability will allow a wide range of players, from juniors to senior doubles players, to generate the stroke speed needed for effective pace. Yonex adds its BT Hybrid Grommet System to this model, a feature that enables the main strings to move further out of position so that they can snap back with greater force. The result is heavier spin. This racquet's raw speed comes in handy at net and on service returns, especially when the pressure is on. Ultimately, the Si Team is a very versatile racquet that offers user-friendly performance from all areas of the court. This is a must demo for any player who wants a light racquet with a lively and accurate response.