Glistening sheen on this chocolate brown / iridescent gray Agoya shell 2 hole button. Simple and elegant, higher quality button, smooth and sleek. They have a delicate look but are quite strong, which Agoya shell is known for. As you can see, some are more flat and more perfect than others; they're a bit rustic. The brown color varies beautifully in the light and flashes a bit lighter, darker, with silver and plum tones, depending on the light and viewing angle. 

This is for the 9/16" size.  Some are almost 5/8". 

Sold individually for $1.00 each.