Made of PE, skid resistance, soft, light and comfortable. Material of food-grade plastic, can be washable and reusable, with fool proof design, easy to use. The bracket reduces the friction between mask and face. Keep lipstick away from masks, stay beautiful. 3D Breathable design, designed according to the curve of the human face, increase more breathing space, solve stuffy and sweaty. There are 3 kinds of shape for Adults with size 4.3'' x 3.7'' and 1 shape for Kids with size 4.3'' x 3.2''.