Why Choose Brand? : focuses on the research and design of sleep eye masks to help people improve the quality of sleep. Please dont hesitate to contact us if you're not satisfied, We promise will try our best to solve your issues. In addition, we would be very grateful if you could give us some suggestions.Detachable Bead Bag: The glass bead bag massages muscles around the eyes to relieve fatigue and stimulate deep sleep through deep-touch pressure; take out the bag and use the mask alone as a perfect shading pillow.Season Smart: weighted eye mask features crystal super-soft plush for a warming touch and bamboo fiber for a cooling sensation; inserted with non-toxic and non-irritating glass bead bag to help with pressure relief and muscle relaxation,it also for microwave and freezer, treat your eyes with a hot and cold spa to relax and refresh.Easy Care: Cozyinght's weighted eye mask is designed with a high-grade zipper that opens and closes smoothly, making the inner bag replacement and mask cleaning super handy; both hand and machine washable.Fully Adjustable Elastic Band: Ergonomically designed to conform to your head and face, the flexible Velcro strap holds the mask in place through hours of sleep. Wear it for naps or all night long to get quality shut-eye anytime, anywhere.Note that if you wear it for a long time to sleep at night, it is recommended to take out the inner tank.