Oval Crystal Open Back Ring | Sensitive Skin Friendly✅ | Shiny finish This Mallory Ring is the perfect combination of style and shine. Featuring an adjustable open back, crystal details, and an oval stone, this ring has a beautiful and eye-catching shiny finish. Capture your unique style with this stunning accessory. Standard size 7. This piece is made of our proprietary zinc alloy which makes her sensitive skin friendly. When we developed our line, we tested it on our team, including our owner's cousin who is highly allergic to nickel. She passed the wear-test with flying colors! We also double coat all of our pieces so they last longer, resist water, and shine brighter!