EFYTAL Couples Necklace - Two Initial Love Necklace with a Heart - Tiny Gold Filled Lovers Initial Necklace TO CUSTOMIZE: initials and chain length, click on the yellow [Customize Now] button MATERIALS: 14k Gold Filled - gold filled is a thick layer of gold bonded onto brass. It does not peel off or rub off. It's the the best gold metal option on the market short of buying solid gold. nickel free, hypoallergenic. EFYTAL stands by the quality of our metals. HANDMADE WITH LOVE: custom made and stamped to order just for you. Will come beautifully gift wrapped and ready for gift giving. DIMENSIONS: Length: 16" or 18" (Let me know if you need a different length). (select your length in the customization area). The chain is dainty but strong, and will not break. Efy Tal Jewelry (manufacturer) will always replace it for you if needed. Size: 9.5mm (3/8"). This is small, cute and dainty. GUARANTEE: Be delighted with this necklace or your money back. 5 year warranty on chain.