Product Description massage stone warmer Directions 1. Plug the temperature controller into a power source. 2. Place the basalt stones in the stone heating travel bag. 3. Set the desired temperature on the digital LCD display. 4. Wait for the stones to heat up, which should take 8-15 minutes. 5. Remove the heated stones from the bag and use them for massage. 6. After use, clean the stones and place them back in the heating bag to cool down. 7. Store the product in a safe and dry place. Safety Warning Do not use in wet or damp conditions and keep away from water to reduce the risk of electric shock. See more