Inspired by Head's adult Speed series (endorsed by Novak Djokovic), the Speed 23 Junior Tennis Racket is a lightweight alternative for juniors who love playing tennis, but are not ready to use a full-sized frame. At 23 inches long, sporting an O-Beam design, and with a 107 square inch head, the Speed 23 is easy to use. It is also light at only 6.7oz (190g). This means that it will be easier to hold and swing than larger, heavier designs. All in all, it is a great tool for young, small players. This racquet comes pre-strung.