These rings are called meditation ring for the outside rings spin to help maintain focus in meditation. It also acts like prayer wheel to help send our prayers to the divine. Based on the ancient Tibetan Prayer Wheel. Spinning the outside ring brings the wearer and sense of calm and peace
The Metals also have special significance and aid us in our practice.
Wearing a metal ring, especially made of silver and/or copper, by a yogi on the ring finger stabilizes the body and provides the fundamental support for yoga and meditation practices and can become a key to mystical dimensions of life.