Features: Our Stones' high-ferruginous component, non-porous, smooth texture, combined with their high heat retaining qualities, makes them the ideal choice for therapists. Their high ferruginous components will improve blood flow and relax your muscles. This makes them the preferred choice for therapists. Increases circulation, facilitating maximum blood for optimum body functioning. Vaso-dilation of blood vessels causing and increase in blood flow around the body, providing the important fuel to keep the body functioning at total efficiency. Increases cell metabolism; thereby increasing the rate at which the body processes nutrients and toxins. Specifications: Material: Stone Color: Black Size: 4cm x 3cm Increase lymphatic function, thereby increasing detoxification, cleansing and elimination. Deep relaxation of muscles, helping to alleviate stress and tension. Creates a feeling of balance and harmony.Gives the client a deeper and longer lasting sense of relaxation. Package Includes: 10 Black Massage Stones