The Aeries is a high speed understable driver that helps all players carve up the fairway. Ideal for controlled distance in tight spots or longer turnover shots. High powered players will find this also makes for a great distance roller. Millennium's Sirius plastic is a high-end blend that resembles Innova's Star plastic. Sirius plastic has added grip to help you hold on to the disc, and is also super durable to retain original flight characteristics for a long time.