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 playing properties control power balance 330 mm recommended height from 155 cm weight unstrung 290 g grip circumference 103 105 mm racket balance even grip sizes l4 l1 l2 l3 shape oval length 685 cm length inches 27 season 2016 series dunlop nt additional information the o