Prince O3 Blue OS Prestrung Tennis Racquet This racquet ships pre-strung This racquet includes a cover Headsize 110 square inches weight 9.5-ounce/270grams unstrung balance 13.2in/33.5cm Swing weight 285 length 27.5-inch cross section 25-27-24 mm string pattern 16 x 19 For players who look for all-around racquet playability with the perfect blend of power and control Racquet cover included