The volkl super g 7 tennis racket encourages spin play and has good feel designed for intermediate players the volkl optispot on the head helps improve timing the ball making finding the centre of the sweet spot on the large 104in2 670cm2 head easier the expanded sweet spot means the racquet offers more forgiveness and power the super g 7 features volkls super g grommet system which absorbs more impact vibrations and increases the trampoline effect by transferring more power to the bal