size: 3cm

Detail: Awareness ribbons are short pieces of colored ribbon folded into a loop, or representations of such, which are used in the United States, Canada, Australia, UK and other parts of the world as a way for wearers of the ribbon(s) to make a statement of support for a cause or issue.
Multi-colored CRPS awareness ribbonThe use of ribbons is designed to draw awareness to health issues and other issues. The most well-known is the red ribbon for support of those with acquired immunodeficiency syndrome (AIDS), and the pink awareness ribbon which denotes breast cancer awareness. The meaning behind the awareness ribbon depends on its color or colors. Many groups have adopted ribbons as symbols of support or awareness, and as a result, many causes often share each color.

(http://www.disabled-world.com/disability/awareness/ribbons.php)