Because the stone is a natural rub each foot size, color, holes are not exactly the same shape and weight, packing slips are mixed.

Each piece of volcanic rock about egg size, length of 9-11 cm, width 6-8 cm, 3-4 cm thick, error in 1-3 cm

This product with water to soak until the water temperature is suitable for feet in 3-5 minutes, gently rubbing the feet, repeatedly rubbing can afford to foot massage at this point, so as to accelerate the microcirculation to adjust blood pressure, promote the body's metabolism.

Note: this person, to prevent cross infection. Regular cleaning, keep it clean.