Since the O3 Tour, Prince has created a racquet that is built for control, stability, and playability. Players ready for a tour caliber Prince racquet will find that the Speedport Tour is all they need plus more. With its customizable string insert grommets, elite players will now be able to achieve optimum comfort and control, at the same time benefiting from the existing O3 technology. The O3 Speedport Tour incorporates O3 technology into two, thin beams, smaller head size, and player weight frames. The Tour is a solid choice for players seeking a cutting edge performance racquet, with a high level of comfort and maneuverability. Recommended for advanced level players. A novel innovation is the introduction of Prince’s Speedport Tuning System (STS). With this system, the racquet comes with two grommet systems. The harder one receeds into the speedport holes which permits less movement within the strings and retains the more traditional feel that todays players are used to. The softer grommet glides above the holes to grant the strings more room for movement which in return allows for a larger sweetspot and even further forgiveness on miss-hits. This allows the player to customize their racquet even further to their liking and if they decide they had made the wrong choice, grommets can be switched during any stringing job.