The Pro Staff 97L is designed for players looking for lighter, manageable access to the Pro Staff line. This includes those either new to the game or junior players (ages 14-16) whose muscles haven’t fully developed. The 97L features all the same new technology as the 97, but its lighter weight (10.2oz/290g unstrung) will make it easier for these players to make contact in front of their body, and the racket’s slightly thicker frame (23mm vs. 97’s 21.5mm) will provide additional power and stability as they develop their strokes.