Bridgestone e12 Speed is a three-piece ball with a Gradational Compression Core, a core that is softer in the centre and gradually firmer outwards. This construction means that the ball is compressed more at impact, which can create higher ball speed and less spin with the driver. The outer cover has an aerodynamic surface with 326 dimples designed to reduce drag and provide a more penetrating ball flight, especially in headwinds. The ball is also equipped with Bridgestone’s MindSet technology – a clear directional pattern on the top that is meant to help you focus and direct the ball more easily on drives and putting. e12 Speed is designed for players with medium to high swing speeds who want a ball that goes far with a lower, straighter course.