Adult tennis racket head size midplus racket head size 645 cm head size inches 100 sq in stringing 16 x 19 level advanced type of racket all round racket balance 340 mm recommended height from 155 cm weight unstrung 305 g racket balance even shape oval frame profile min 22 mm frame max 22 mm length 686 cm length inches 27 season 2015 player roger federer colour red additional information the offers may vary in grip sizes