Reusable PVC Gel Beads Eye Mask Cooling Masks Anti Dark Circles Eyes Relax Ice Compress Sleep Aid Cold Therapy Sleeping Mask Size: Safety and environmental protection materials. Polymer gel filled, storage temperature effect is good, extend cold hot compress time, exquisite edge wrapping technology. Soothe eyes, make sleeping eyes more comfoable, relieve eye fatigue, bid farewell to dark circles, rejuvenate bright eyes. The gel ice beads are physically cooled by using a unique formulation of antifreeze gel as a filler. Perfect fit facial lines, eye nose contour, soft and comfoable, no eye pressure, no strangulation mark. Usage : Put it in the refrigerator, after cold treatment , you can wear it on the eyes. Generally, it can be worn for 5-10 minutes, and it can also be extended appropriately according to individual symptoms.It can also put it in warm water after heating to hot compress.