From the Manufacturer...
The Aero is great for beginners and players using only one disc. It's extremely straight and very easy to keep on the fairway for beginners. The Aero is a slow flying control disc with a large diameter and a significant amount of glide. When broken in, the Aero will turnover slowly and predictably. The Aero was introduced in 1983 as the first disc designed specifically for disc golf (then called the Eagle).
Weight Range: DX: 150-180g
Best Choice for: All-around disc, Beginners, Short to medium turnover shot
Available Plastics: DX