Head YouTek IG Speed MP 18/20 Tennis Racquet This YouTek racquet is equipped with d30 and innegra, which combines different technologies to allow the racquet to adapt to every shot you hit and reduces vibration by 17%. The head size of the racquet is 100 square inches with a 20mm beam and a 18/20 string pattern. The racquet weighs 11.1 oz. unstrung and is standard length 27". The balance of the racquet is 1 1/3" HL. The grip size is 4 3/8". This racquet comes with NO cover. Racquet is strung and ready to use.