The Kinetic Pro 5g is equipped with the Kennex Kinetic System. Dozens of chambers in the frame hold kinetic mass, which transfer an enormous amount of energy when the ball pushes off the frame. Additionally, this increases the effectiveness of the hitting area significantly to provide better shots more often while also offering exceptional vibration dampening for longer play. It is a great player's frame for those wanting the best control possible. High maneuverability and ideal for players with long a fast swings. Recommended for 4.0 to 6.0 players. ProKennex Racquets MAKI3