Package Details 1. Material: Polyester 2. Package Includes: 1 Pack Sleeping Mask 3. Patterns: Colorful Wavy Abstract 4. Size: 7.9In x 4In(20Cm x 10Cm ) Features 1. This eye mask is made of imitation silk fabric, which is healthy and breathable, has a good light-blocking effect, and is super soft and comfortable to wear. 2. Elastic adjustable buckle design, it will not move or fall off when you sleep, easy to adjust, double-sided design, both sides can be used. 3. The soft eye mask is a good helper to eliminate fatigue, improve sleep quality, and increase energy for work and study. It is suitable for various occasions such as indoors, outdoors, camping, traveling, shift work, meditation, yoga, etc. Washing Tips Hand wash recommended, air dry, do not use bleach. Premium Service If you have any other requirements, please let us know by e-mail when you order or receive this item. We will reply within 24 hours.Best Sleep Essentials: Our double-sided sleeping mask is a must-have for anyone who wants to improve their sleeping experience. Say goodbye to eye swelling and hello to a more rejuvenated you!. Wide Range of Uses: Our sleeping eye mask is designed with functionality and versatility in mind, perfect for a variety of occasions. Suitable for travel, naps, flights, camping, and yoga. Perfect Size: Our sleeping mask measures 7.9 inches x 4 inches (20 cm x 10 cm), suitable for different face shapes and sizes. Adjustable design, suitable for any sleeping position and stays in place, creating a perfect sleeping environment. Double-Sided and Adjustable Design: Our eye mask is double-sided, can be flipped for use, and comes with an elastic adjustable buckle, allowing you to easily customize the right size to your preference. Premium Material: Our double-sided sleeping mask is made of high-quality polyester, which makes the sleeping eye mask breathable and lightweight, not only healthy and breathable but also has an excellent light-blocking effect.