<b>How To Use?</b><br> <b>Cold Therapy:</b><br> For best results, we recommend freezing them for at least 2 hours or more before using. Each gel pack provides 15-20 minutes of cold therapy relief.<br> <b>Heat Therapy:</b><br> Make sure to cover the packs with a wet towel or put it in water and then heat it in the microwave. Start out by heating for 20-second intervals with intermediate fire until the pack reaches the desired temperature. After removing from the microwave, knead and flex the gel-pack to even out the heat. <br> <b>Clean and Care:</b><br> Wash in warm soapy water after use.<br> <b>Warning:</b><br> Not recommended for infants. <br> If the product breaks, please discard it directly. <br> Use by children must be under the supervision of adult.Never put the frozen pack directly on child's skin. Limit the use time to no more than 20 minutes. <br> <b>HASSLE-FREE 30-DAY MONEY-BACK GUARANTEE.</b><br>