Head YouTek Four Star Tennis Racquet - Strung This YouTek racquet is equipped with d30, which combines different technologies to allow the racquet to adapt to every shot you hit. The head size of the racquet is 115 square inches with a 26/28/28mm beam and a 16/19 string pattern. The racquet weighs 8.8 oz. unstrung and is extra long in length 27 1/3". The balance of the racquet is 2/3" HH. The grip size is 4 1/2". This racquet comes with a cover and strung at mid tension.