The ring is adjustable (one size fits all) and the inside glass dome is about 1/2" (12 mm) in diameter.
The ring can be bought together with a matching pair of earrings, necklace and cufflinks >>> http://www.etsy.com/shop/JujuTreasures/search?search_query=union+jack&order=date_desc&view_type=gallery&ref=shop_search
Want to see my other rings? Please click here >>> http://www.etsy.com/shop/JujuTreasures?section_id=10153458
The item is not waterproof. Please avoid direct contact with water.
If you have any questions regarding shipping and payment, please take a look at our shop policies >>> http://www.etsy.com/shop/JujuTreasures/policy
Thank you for visiting Juju Treasures!
Have any questions? Contact the shop owner.