Head graphenext instinct mp tennis racket be at the top of your game with the new head graphenext instinct mp tennis racket which due to the new and improved graphenext technology gives a perfect blend of power and handling the instinct mp feels softer than ever before and also provides better vibration dampening than previous versions head tennis racket weight 300 g 106 oz beam 232521 mm head size 645 cm 100 in balance 320 mm 1 in hl length standard 6