Cool Down, Relax & Rid Yourself of HeadachesThe Elasto-Gel Hot & Cold Cranial Cap is a great way to treat migraines and other types of headaches and can also help regulate body temperatures after a workout. Put the Cranial Cap in the freezer for a minimum of 2 hours for use during cold therapy. The cap will stay cold for up to 40 minutes, and will also remain flexible even at -20° F. Use the cap to treat cluster headaches, migraines and tension headaches. You can also use the cap to regulate body temperature during or after a vigorous workout. To use the Elasto-Gel Cranial Cap for heat therapy, simply warm in the microwave and enjoy a flood of warmth for your head.Features: Simple to put on; attaches around the neck Removable outside cover Soft, pliable, bendable material keeps shape down to -20°F Can be used as a hot gel pack too Comes in 2 convenient sizes: small/medium and large/x-large Disclaimer: This item is non-returnable. Due to our compliance with Health and Safety regulations we cannot accept returns on this product.