Wide Applications: It can be used for pain, allergies, head colds, sunburns and so much more. You can even use them before bed to relax your eyes from a long day. Adjustable: With the stretchable strap and adjustable, cooling eye packs for puffy eyes fits all head sizes. Hot or Cold Therapy:Wear the gel eye mask after cooling or heating to help you relieve fatigue and stress. For cold therapy, place it in the refrigerator for about 2 hours; For heat therapy, place it in microwave oven and heat it for 10-20s. Relief: Whether you are looking for relief from a migraine, headache, puffy eyes or just to relax, our gel bead mask is here to help. Comfortable: The gel eye mask is made of PVC and soft plush, which is comfortable and soft, does not need to be insulated with towel. The built-in flexible gel beads can be bent at will to fit the contour of eye area even when frozen.