Quality Materials: These eye masks are made of mulberry silk and are full of silky touch. The smooth and soft surface will make you feel very comfortable and relaxed. . Clever Design: Eye patches use a 3D groove design, which means that single eye mask will not oppress your eyeballs during wearing, and there is no pressure on your eyes, ensuring your comfortable wearing. . Easy to Care: These eye masks are washable. It is recommended to wash them gently with cold water and soap. They are reusable and stable, and are not easy to wear or break. . Easy to Carry: These monoculars have a portable and compact design and are light in weight. They will not increase the burden on the head when worn for a long time, and they can also be taken wherever they are needed. . Wide Uses: It can protect your eyes and cause amblyopia. It is suitable for eye care, it is simple and effective for the treatment of amblyopia and astigmatism. It is a good option to train lazy eyes to work normally and change vision normally. .