This is a very rare and hard to find Discraft Ultra-Star original stock print and molding. The Ultra-Star was first introduced when Wham-O still held the patent for rings on a Frisbee or flying disc. Discraft produced the Ultra-Star in the early 80's and made some in roads to the competitive ultimate market but it wasn't until 1983 when the patent expired did the put rings on the disc. Instantly it became the disc for competitive play. This is a rare original version without rings. The Ultra-Star is the most popular disc made. Used in nearly every competitive Ultimate Frisbee game since 1983.