The D Model US is built for beginners and players with slower arm speeds. With its naturally understable flight, the disc will want to turn over and hold before coming out of it to softly glide back toward the ground. The increased glide and soft fade are a perfect combination for players with less power to work on getting the desired flight for maximum distance throws. Players who do have more power can use it for long turnovers and rollers. D Model discs are built for maximum distance and have a sharp nose and slight dome for increased speed and glide. They also feature medium-depth rim to allow a comfortable grip across different hand sizes. Our BaseGrip plastic offers a tactile feel for a sure grip every time you reach for it. It finds a great balance between stiffness and the ability to wear-in to perfection. BaseGrip plastic provides a cost-effective option without sacrificing on quality and performance in all weather conditions. We are confident BaseGrip GLOW discs are some of the most unique glow options out there. See for yourself! Once these are charged (we recommend a black light for best results), you will get a powerful, bright glow like no other.