[18K Gold & 316L Steel]: 18K Gold plating over 316L and 304 Steel. Heart pendant (18x15mm) with 1-1.9mm hole. Hand-assembled in New York, USA. [Nordic Studs & Rings]: Includes 3mm Zircon Studs (18K Gold) and 10mm 316L Steel Cartilage Rings. Hypoallergenic and safe for adult use. [Waterproof & Durable]: 100% waterproof and sweat-resistant. Advanced ionic bonding prevents oxidation and irritation. [6-Piece Luxury Set]: Curated necklace and earrings bundle. Ideal for weddings, anniversaries and executive style. No assembly required. [Dual-Tone Bags]: Includes two 9x12cm Organza bags (Pink Coral and White Coral) for gift and storage.