The seed of life comes to us from the ancient pattern called the flower of life. It represents creation and connects the wearer to the heart of all existence. The seven circles reflect the seven chakras. This charm is sterling silver and measures just under .75" in diameter. It comes on an 18" chain which can be substituted for a different length. Just send us a message and let us know! We have 16", 18", 20" and 24" available.