Necklace chain, links and clasps are sterling silver. The pendants are hand cut, filed, sanded and drilled by me from .064” thick sheets of aluminum. The pendants are about the thickness of a quarter and super light-weight. Every clasp is a solid sterling silver lobster clasp approximately .5 of an inch long. The aluminum is produced in the USA. The beads are glass. Most are about 18” long unless requested otherwise.