Foot reflexology is based on the idea that the foot contains reflex points, corresponding in miniature to all parts of the body. The Hukka Mini Sole Joy is a relaxing massage aid for the soles of the feet and overall well-being of the body. Whether you require a hot or cold treatment, you can put the stone ball into the freezer or oven to ensure the proper hot or cold temperature as you need it. Once the appropriate temperature is attained, simply place the ball onto the cork base then roll your foot over and around in a circular motion. The combination of warmth and pressure provides amazing results to aches, pains and general stiffness. Warmth transported via the feet reaches the entire body. The results are extremely relaxing and satisfying. Made from pure, natural Finnish Carelian Soapstone, which has the unique ability to retain heat and cold, the Mini Sole Joy is inert, allergy free and totally safe as is the cork sole.