Our Space Milk Necklace has been created in hypoallergenic .925 Sterling Silver coated in 14k gold and is available in your choice of metal color finishes. The dainty box chain is 18-20 inches adjustable in length. This design features a beautiful pastel green stone to mimic one of our favorite galactic treats! This necklace was designed to be dainty enough for a touch of every day beauty and magic in or out of the parks.