Made of thick, durable material with fine workmanship, a soft touch, and wear resistance. The 100% blackout fabric features a special silver-gray coating on the back, effectively blocking sunlight and harmful rays to create a completely dark sleeping environment and promote comfortable sleep. Uses: This portable blackout curtain is lightweight, easy to carry, and store. Ideal for creating darkness in nurseries and bedrooms, it can be used on any window in the home, and is also suitable for travel, dormitories, offices, business trips, etc. Instructions for use: The lightweight material allows for customization to any window size. Installation is quick and easy, and it can be easily removed when needed. Note: Please confirm the dimensions before purchasing.