1989 G.I. Joe Command Rings Promotion

Hasbro offered a lot of special G.I. Joe promotions in the eighties. Ranging from mail-away exclusive action figures to re-packed old toys to this, a mail-away offer for the G.I. Joe Combat Sunglasses which were part of the Command Rings promotion. What are the G.I. Joe Command Rings? yojoe.com says it best with:

In 1990, G.I.Joe Command Rings were included free in specially packaged G.I.Joe figures. Eight rings were available, and each figure with a ring came with a folding insert describing the rings.

Visit yojoe.com for pics of the rings!