This steam eye mask pack warms up automatically when you use it. The temperature is about 40 degree, perfect product to relax your eyes when you stay long in front of pc. It helps sooth the skin near the eye area, relieve puffy eyes and dark circles , promotes relaxation and better sleep. Suitable for any face shape and any posture, day or night, before sleep, under travel or just after a long day in front of a computer screen. Each pair of eye mask lasts for approx. 20-25 minutes. 1 pack contains 10 pcs eye masks.