If You Ever Have A Problem With Your sleep eye masks, Please Email The Seller, We Always Are Dedicated To Make It Right sleep masks are made of 100% Polyester, Breathable and comfortable, light and easy to carry Eye mask can effectively block light, washable, super soft, no pressure, gentle Adjustable Design: Adjustable straps, no pressure on eyes, suitable for women, men and children. It can be used for daily home lunch break, hotel, airplane, expansion activities, office, etc. Washing method, hand washing is recommendedWashing instructions: wash at room temperature, hand wash or machine wash, do not soak for a long time, do not bleach. Adjustable Design: Adjustable straps, no pressure on eyes, suitable for women, men and children. It can be used for daily home lunch break, hotel, airplane, expansion activities, office, etc. Eye mask can effectively block light, washable, super soft, no pressure, gentle. Ahegao Face sleep masks are made of 100% Polyester, Breathable and comfortable, light and easy to carry.