This sterling silver charm is No Smoking Symbol sign! It is about 15 mm in diameter. Each one has a different finish. There are dots in the silver on all of them so they are discounted by 25% off the regular price.
Look for all of the other road sign charms also in my ebay store.
Look also for the 6000 other charms for sale in my ebay store. I even have charm bracelets and chains!!