LED Wooden Base:The LED wooden stand is rectangle shape,diameter is about 12.2inch. The USB Cable is one meter in length. The 7 Colors spheres are all in same size,but 40mm. Reki Decor for Room:Place each crystal healing sphere on the LED wooden base,connect the power supply, and turn on the switch. The light is on.You can have a feeling of being in the starry sky,which can bring harmony and balance into your life. Perfect figurines for space night light decoration. They can also use for Feng Shui divination decoration. Chakra Meditation Healing: You can take the 7 Colors crystal balls set separately for meditation healing. Each of the 7 chakras represents a physical,emotional or mental state,helping to enrich one's spirit and well-being The chakra stones are used to balance the chakras on a daily basis and to enhance chakra healing.They can also use for Feng Shui divination decoration.