Thermal therapy and gentle pressure for natural, instant relief from eye strain, muscle tension, and stress after a long day. FILLING: Natural clay beads FABRIC : 71% polyester, 27 % cotton, 2% spandex Spandex + Nylon elastic band WEIGHT: 11.4 oz (325 g) 7.2 oz (205 g) Excluded bag & packaging MEASUREMENTS L9 x W4.13 x H 0.78 in L23 x W10.5 x H 2.0 cm Eye and facial tension relief Hot & Cold Eye Mask helps you relax your tired eyes, restore your face and calm your mind when you need a break. Disconnect and enjoy your "me time" in total comfort. Hot and Cold Therapy Use it hot or cold to alleviate a variety of ailments: Cold use:- Eyestrain- Red eyes- Eye irritation- Swollen, puffy eyesHot use:- Dry eyes- Migraines- Tense facial muscles- Swollen eyelids Weighted and fully adaptable Its natural clay bead core applies a gentle pressure while fitting your face blocking out any light, and it’s specially designed to keep your nose free of pressure for an ultra-comfortable unwinding experience. Hot effect Insert Hot & Cold Eye Mask into its protective cotton bag, place it in the microwave, and heat it to max power (1000W) for 30 seconds. Make sure that any other microwave functions are turned off. If it has not reached your desired temperature, you can reheat it in 10-second intervals. Cold effect Place Hot & Cold Eye Mask into its zippered EVA bag in the freezer for at least 1 hour. Check if the temperature is adequate.