Cutest thing ever! Put a wish, a goal, or a love note on a little piece of paper and put it inside to keep it close to your heart! The 1” diameter and 1/2” deep charm comes on an 18” chain. The charm is hinged to open. After placing your keepsake inside, just close and put it on your chain! Stainless steel gold plated, non-tarnish, nickel free. The chain is gold plated stainless steel, excellent quality, 17 1/2” long.