Small, gleaming Agoya Shell button with very consistent rich true black color. Very shiny, excellent quality; clearly these aren't plastic buttons.  Smooth and sleek, they look delicate but are strong, and will wear well.  1/2" /13mm diameter,  2 holes.

Pack of 8 buttons. 

We have these in several sizes in separate listings; they are a beautiful basic.

Where it reads "Only --- Left", that is the number of packs of 8 we have, not the number of individual buttons.