This bracelet is made with 8mm natural agate stones on a stretchy band to fit any size wrist. Agate Healing Properties: Agate properties connect with the energy of the Earth. They are thought to bring harmony to all aspects of the being, physical, spiritual and emotional. Using agate during times of unbalance, when it feels as if the yin and yang within you are operating out of proportion, can reintroduce an equilibrium to your tempered soul.