The necklace can be worn at 16" or 18". The chain and charms are stainless steel. So many different ways to perceivethe symbolism of lock and key. I love the thought that for every problem there is a solution. You wear this an its a reminder that you have all of the answers inside of you. We just need to take time to be quiet enough to listen for them.
To keep yours jewels in tip top shape for as long as possible please avoid bathing or swimming with them on.