Material: Premium material with Rose Gold PVD Plating -Inlay: Glossy Black Enamel / Onyx Style Accent -Closure: Easy-to-wear secure spring-hinge clasp -Durability: Waterproof, sweat-proof, and anti-tarnish -Skin-Friendly: 100% hypoallergenic, nickel-free, and lead-free -Fit: One size fits most (oval wrist contour for all-day comfort)