The Midari is the midrange disc in the Prodiscus line. This stable flyer has a great feel and goes where you want it to go. It is a fairly slow flyer for a midrange, but flies straight, with a sharp end of flight fade.
Ultrium is the most durable plastic in Prodiscus' lineup. Lifespan of an Ultrium based disc is extremely long. However it's not all that Ultrium has to offer; it has unbelievable grip and feeling in the hand.