About 1" across. All sterling silver metals.
Please let these hoops hang around (or little bit more) half way through its biggest loop. They usually stay well and I never needed earring stoppers. However, if you have large/loose ear holes, just request earring stoppers in Note To Seller upon checkout.
+ PLEASE read my shop policies http://www.etsy.com/shop_policy.php?user_id=5040809 regarding estimated shipping date and other important transaction information before purchasing.