Adult tennis racket head size oversize racket head size 690 cm head size inches 107 sq in stringing 16 x 19 level beginner type of racket all round racket playing properties control power balance 325 mm recommended height from 155 cm weight unstrung 280 g racket balance head light frame material graphite shape oval frame profile min 24 mm frame max 28 mm length 687 cm length inches 27 technology prince textreme season 2015