28pc Hot Stone Set Hot stone massage therapy melts away tension, eases muscle stiffness and increases circulation and metabolism. … The hot stones also expand blood vessels, which encourages blood flow throughout the body. The hot stones have a sedative effect that can relieve chronic pain, reduce stress and promote deep relaxation. Basalt is the ideal material for hot stone massage. The composition of this volcanic rock (high silica and iron content) makes it hold heat longer than most stones. The role of energy stone: 1. Promote blood circulation and improve microcirculation system 2. Improve the oxygen-carrying function of red blood cells and reduce blood viscosity 3. Strengthen and improve people’s immunity and improve the body’s resistance to disease 4. Anti-aging effect 5. Eliminate fatigue and promote physical recovery 28 Pieces, comes in carry bag.