Therapeutic Gel Pack Applies Heat Or Cold To Sore Muscles.
Microwave And Freezer Safe.
Reusable And Non-Toxic.
Instructions Printed On Reverse Side.
After freezing, stays cold for up to 3 hours. If dropped, the item will not shatter or break. After microwaving 30 seconds, the item will stay warm for 90 minutes. Condensation may potentially cause bubbling until cool.