Tecnifibre TFD315 TFight 315 Dynacore Tennis Racquet - unstrung The Tecnifibre TFight 315 Dynacore is a user friendly racquet that has a very easy swingweight. Head Size: 98 sq. inches / 630 sq. cm Length: 27 inches Strung Weight: 11.7 oz. / 331 grams Balance: 7 Points Head Light