U.S. Kids golf knows that not every junior golfer is a beginner. For experienced players who need stronger Club heads and shafts, Tour Series offers high-tech equipment while keeping all the benefits of the U.S. Kids golf fitting philosophy. Optimal height range 57 in. To 60 in. Advanced technology for advanced players. Shafts are frequency Matched with a low flex point for optimal ball flight. Tour Series perfectly bridges the gap between junior equipment and a player's first set of adult clubs.