Gel hot cold pack,non-toxic, natural herbs inside 1. Moist heat therapy 2. Cold therapy 3. Aroma therapy 1.Natural Products, No Chemicals ... sleep. 4.Reusable, ready in minutes 5.Use it hot or cold for long lasting comfort 6.Can be used during travel ... fleece fabric is even more velvety and durable 8.Gel hot cold pack,Microwavable Lumber & Waist Wrap & Mittens & Gloves & Booties & Belt & & Neck ...