Tumbled stones are small, rounded, brightly polished pieces of rocks and minerals. They are made by placing rough rocks in a machine known as a rock tumbler, which tumbles them until their edges and surfaces are smooth and polished. Natural Agate offers a wide range of Tumbled Stones Seven Chakra Healing Yoga Bracelet online. Tumbled stones are used as energy stones in alternative medicine. They are also used as healing crystals and as chakra stones. Tumbled stones are often used and placed on different chakra points to relieve different physical, emotional, mental, and spiritual discomforts.