There is more to the Copperstone than just the application of hot and cold stones. Copper delivers true vital benefits. Copper is the most essential mineral for the development and maintenance of the entire body. Copper is best induced through the skin and has over 100 vital benefits. These benefits include: Rebuilding of skin tissue and bone mass, Reproduction of collagen, Reduced inflammation, Relief from arthritic conditions and rheumatism, Relief of muscular aches, pains sprains, and strains, only to mention a few. Product details: 12 copperstone set, Canvas black draw string carry bag and Instructions. Stone size and color will vary.