Premium Materials Eye patches are made of soft EVA material, comfortable and soft. 3D groove design would not to put pressure on your eyes. It also can be worn under eyeglasses. Size of Eyepatch This eye patching can be worn left eye and right eye. Adjustable Strap The elastic band of adjustable strap can be ensure to fit most head size, from 7 inches to 17 inches. Suitable for adults and children. Multi-Function Our eye patch is suitable for correcting amblyopia, strabismus, pseudomyopia and helping rehabilitation after eye surgery. It is also a good choice for Halloween dress up party, masquerade and cosplay show. Note: It is recommended to clean the eye patch once a week and replace it every 3 months. Size: 7.5 * 6.8 cm (eye mask head circumference adjustable range of about 32-65 cm) Color: black Package includes: 1pc*eye mask