Metal, single clip on the back. Maker - Cash's Aminco #054274. About 29mm by 39mm. Town name, cauldron & bordering actually chrome as scanning makes them appear black. Auction in AU$. Post FREE within Australia, $25 post outside Australia(no excess postage cost for multiple small purchases). For multiple purchases please wait for final invoice so postage can be adjusted. MANY MORE OLYMPIC PINS IN MY EBAY STORE.