PRODUCT DETAILS: Composition: Stainless Steel; 18k Gold Plated Measurements: 15x2.7mm hoop 6.4x10.7mm Black CZ CARE GUIDE: Hypoallergenic, 100% water proof jewelry that you can wear without a care! Wear it in the bath, shower, rain, snow, hurricane, pool, ocean or planet mars. Plated using an environmentally friendly process - wear it without any guilt!