18K GOLD FILLED Chain Necklace Layering Necklace Daily Wear Paperclip Chain Dainty Chain WATERPROOF Jewelry Personalized Christmas Gift This item is WATERPROOF, nickel-free, and lead-free. This item is made of high-quality materials and is non-tarnish. This item is hypoallergenic so it won't irritate sensitive skin. Chain Materials  - Lip Chain (1.7mm): 18K Gold Plated over Stainless Steel  - Dainty Chain (1.5mm): Gold Filled  - Twist Chain (1.7mm): Gold Filled  - Beaded Chain (1.8mm): 18K Gold Elegant Gift Wrapping, Necklace Layering, Jewelry Personalized, Dainty Chain, Waterproof Jewelry, Trombone, Layering Necklace, Personalized Christmas Gifts, Chains For Men