Wilson Federer Strung Adult Recreational Tennis Racket Volcanic Frame Technology increases power and stability Perforated grip adds cooling comfort Power Strings increase pop Stop Shock Pads reduce racket vibrations Headsize: 110" Strung Weight: 11.5 oz / 326 g Length: 27.25" Balance: 3 pts. HL String Pattern: 16x19 Cross Section: 24.5 mm Volcanic