This 4-hole button for braces allows for a solid seam.
Metal is the best choice for this purpose as horn or ivory would be too fragile.
These buttons are specially designed for wearing braces.
18mm diameter studied for a good maintenance of the leather tabs.
The most important : its thickness, its shape brings you the necessary comfort.
The marking is an engraving thus unalterable in time and its color gives it an authentic aspect.