Stamp color may vary. Disc colors are assorted. 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.