Vibrant stackable rings. Mix and match colors. Perfect for any occasion. This is a vintage Avon Color-Go-Round Convertible Ring from the 1970s. Here's some information about it: Concept: The ring allowed you to change the band color to match your outfit or mood. Components: It consisted of a gold-tone base ring and several interchangeable colored bands. Popularity: This ring was a popular Avon product in its time. Collectible: Today, these rings are considered collectible vintage items.