Koolpak Hot and Cold Gel Packs Reusable - 12cm x 29cm Microwaveable Heat Pack for Pain Relief - Long-Lasting Therapy with Soft Nylon Cover - Flexible Design for Stomach, Back, Neck & Legs (Pack of 5)

Soft nylon coating ensures maximum user comfort and provides extra durability High quality internal gel can be reheated and frozen repeatedly To cool down, simply place in your freezer and allow to cool - normally charged in only 2 hours! To heat up, place the pack in a microwave for 20 seconds and then check - if it requires more heat, follow up with 10 second bursts until hot Conforms easily to body contours for effective treatment Packs can remain hot or cold for 2 hours at room temperature!