Adult tennis racket head size oversize racket head size 742 cm head size inches 115 sq in stringing 16 x 19 level beginner type of racket comfort racket balance 380 mm weight unstrung 225 g grip circumference 103 105 mm racket balance head heavy grip size l1 frame materials graphite titanium shape oval frame profile min 29 mm frame max 29 mm length 703 cm length inches 28 series head titanium additional information the off