Ring size: living mouth adjustable. Rings are made of high quality materials, which are nickel free, mercury free, lead free and safe for skin. The ring is waterproof and corrosion resistant and will not fade. Not only can you wear this beautiful ring as your everyday jewelry, but you can also gift it to your loved ones. You can give it to your parents/friends/kids for a birthday/Christmas/party or any other memorable occasion. If you are looking for a jewelry accessory that can go from casual to formal without changing, look no further. no further; This simple piece will accentuate your everyday style and is perfect for your everyday, business casual or even cooler styles. Perfect for formal accessories. This retro ring set features a variety of styles with a retro punk feel. They can make you look cool, masculine and accentuate your charisma. Also suitable for women who want to express their individual style.