The Ultimate Sweat Tourmaline Heat Knee Belts are made of a natural stone called Tourmaline.
How to Use Product. For best results: Apply the Ultimate Sweat Heat Belt over the cream directly on your skin. The belt should generate heat within 15-30 minutes. Once you feel the heat, remove the belt. The tourmaline causes circulation to the area and your skin may appear red for a short time after you remove the belt. Make sure the belt gets hot before you remove the belt. The time varies on each individual.