HEAD IG Challenge MP Tennis Racquet The HEAD Challenge MP gives you a great combination of spin and power. Exceptional value for a full graphite racquet at a fraction of the cost of other graphite racquets. Head Size: 100 sq. inches / 645 cm Length: 27 inches / 68.5 cm / Balance (unstrung): 1 Pt Head Heavy Weight (unstrung): 9.5 oz / 270 grams (strung): 10.0 oz / 284 grams Racquet is professionally strung by HEAD and ready to use. Includes full racquet cover.