1、Suitable for people with back pain, mental tension, stress, etc. 2、Suitable for different body parts use, such as face, eye, ankles, leg, arm, etc. 3、Deeply relax the body, effective massage, warm muscles, improve blood circulation. 4、Eliminate superfluous toxin, can enhance the immunity ability of the person in an all-round way. 5、It can moisturize the skin and ease the mental stress, through the massage and hot compress, it can strengthen the bleed circulation in the body, and accelerate the body metabolism. Features: It can moisturize the skin and ease the mental stress, through the massage and hot compress, it can strengthen the bleed circulation in the body, and accelerate the body metabolism. Eliminate superfluous toxin, can enhance the immunity ability of the person in an all-round way. Deeply relax the body, effective massage, warm muscles, improve blood circulation. Suitable for different body parts use, such as face, eye, ankles, leg, arm, etc. Suitable for people with back pain, mental tension, stress, etc. Specification: Condition: 100% Brand New Item Type: Massage Stone Color: As Pictures Show Material: Basalt Size: Approx.4pcs(6 * 6 * 1.8cm / 2.3 * 2.3 * 0.7in), 4pcs(6 * 5 * 1.8cm / 2.3 * 1.9 * 0.7in), 8pcs(3 * 4 * 0.8cm / 1.2 * 1.6 * 0.3in) Package List: 4 * Stone(6 * 6 * 1.8cm) 4 * Stone(6 * 5 * 1.8cm) 8 * Stone(3 * 4 * 0.8cm) Suitable body parts: 4pcs 6*6*1.8cm for back, waist and thigh 4pcs 6*5*1.8cm for hand, arms, thighs, calves 8pcs 3*4*0.8cm for face/eye, hand and hand joint/sole meridian/ankle joint Suitable for the crowds: 1. For a long time, facing the computer and TV, people who often play mahjong and drive. 2. With neck, back pain, nervous, stressful people 3. Long-term insomnia, neurasthenia, headache, dizziness, hair loss, hypomnesis 4. Brain blood insufficiency, hypoxia and shoulder and neck strain, proliferation of the population 5. Long-term constipation, abdominal discharge, stomach upset people 6. People with chronic constipation, diarrhea and gastrointestinal discomfort Functions and effects: 1  Detoxification, the heat of energy stone can help the human body to excrete some toxins 2. Promote blood circulation, use heat source as a medium to transfer heat to the body 3. Skin Beauty 4. Fight the flu 5. Regulate body balance