Layer them up or let each one shine solo. The "Day & Night" Set is your go-to duo for any vibe: bold, chill, or somewhere in between. Maximum surface width: 5mm Ring width: 2.4mm | Thickness: 1.5mm Stone: Zircon (0.8-1mm) Premium Stainless Steel + 18k gold PVD coating Waterproof & Sweatproof : Shower, swim and exercise with it, the color remains perfect Hypoallergenic & Lead-free Delivered in an eco-friendly packaging & with a pack of stickers