Our Zip Code Necklace is personalized just for you. Available in Sterling Silver, 24K Gold Plated, or 24K Rose Gold Plated as well as 10K or 14K gold. Makes the perfect gift for your favorite Social Network buff. Hangs beautifully from a link chain in the length of your choice. Our 24K Gold Plate is Sterling Silver (never a base metal), heavily dipped in 24K Gold. Ships in approximately 2-3 weeks.