Head Youtek Graphene Instinct S Tennis Racquet (4-1/8) - Unstrung Headsize: 102 square inches / 660 sq. cm Length: 27 inches / 68.5 cm Weight (unstrung): 9.5 oz / 270 grams Weight (strung): 10 oz / 285 grams Balance (strung): Even / 34 cm