After-sales:2PCS gel eye masks make you and your family more comfortable and relaxing.Gel eye mask which has practical effect, is the most intimate gift for the family.If you have question,please feel free to contact with us,we will try our best to solve your problem. Easy to use: The gel eye mask can be used repeatedly, has a long service life, saves costs, and is convenient for storage. It's easy to clean, just wipe with water or hand wash.Use cold and hot compresses alternately to effectively relax eye muscles and maintain tissue elasticity. Hot&Cold Therapy: Using the principle of physical therapy, wear the gel eye mask after cooling or heating for 8-15min to help you relieve fatigue and stress. For cold therapy,place it in the refrigerator for about 1-2h; for heat therapy, place it in a microwave oven and heat it for 10-20s. Efficacy: According to the applied position and shape,gel beads can be bent at will to fit the contour of the individual eye. The gel eye mask can help you relieve eye fatigue, puffiness, eye bags, dark circles, dryness, headaches, physical cooling, pain relief, itching, refreshing and relieve fatigue. Material: The gel eye mask is made of PVC and soft flannel, which is comfortable and soft,and does not need to be insulated by other things. The built-in flexible gel beads produced by condensed water and purified water extend the time of cold therapy or heat therapy, and are free of toxins and latex.