Quick answer: metal buttons are made from a metal alloy and finished in gold-tone, silver-tone, gunmetal or an aged brass-tone. Most have either a shank (loop) on the back or four sew-through holes, and sizes run from about 10mm to 30mm. They bring a structured, jewelry-like finish to coats, blazers, cardigans and craft projects. Ask … Continue reading Metal Buttons: Types, Finishes and How to Choose