The benefits of running are many, but maybe the most important is the ability of a brief run to set one's mind at ease from whatever cares the day may bring. The Running Gal Sterling Silver Tarma Charm is matched with our petite silver chain for an elegant look you can wear everyday! Charm is 12 mm in diameter (just under 1/2 inch) and 1 mm thick. Charm and chain are .925 Sterling. Chain is 18 inches long with a secure sliding clasp closure. Cast in the USA.