Stress relief: The rhythmic movement of the balls can help calm the mind and reduce anxiety. Improved dexterity: Regular use can enhance hand-eye coordination and fine motor skills. Comes in a medium size for small to average hands and large size for larger hands or more skilled users. Enhanced Circulation: The gentle pressure applied to your hands while rolling the balls can stimulate blood flow and improve circulation. Strengthen your hands and keep them flexible to manage various hand conditions. Meditation aid: The tactile sensation can focus the mind and promote mindfulness. Beautiful balls feature intricate designs created using the cloisonné technique, where thin copper wires outline compartments that are filled with vibrant enamel This pentagon shaped design represents the Wu Xing, the Chinese Five Elements. Yellow for earth, white for metal, black for water, green for wood, and red for fire. The five elements are always in motion and interdependent on each other. Wood feeds fire, fire creates earth from ash, the earth bears metal, metal carries water, and water nourishes wood. It is used in Chinese medicine to interpret the unity between the human body and the natural environment.