Please feel free to ask any questions in the comments. Hansleep Curtains, 1st Grade Blackout, Width 150cm x Length 200cm, Black, Set of 2, Insulated, Cold Protection, Soundproof, Energy Saving, Thick, Plain, Stylish, Washable, for Bedroom and Living Room (Black, Width 150cm x Length 200cm) ◆【First Grade Blackout】These curtains have a blackout rate of 99.99% or more, blocking almost all light from the outside, making the room dark enough that you can't see the expression on someone's face when the curtains are closed during the day. Even with the same grade, the degree of blackout varies depending on the brightness and color of the curtains. Light, pale colors let light through easily, while dark colors block light more effectively. We recommend dark colors for those who prioritize blackout. ◆【About the Fabric】100% polyester curtains made with thick fabric. They have a soft, smooth feel and a matte texture. The high-performance fabric provides first-grade blackout, heat insulation, heat retention, and soundproofing, and the front and back of the fabric are the same color, making it easy to use as a partition. ◆【Suitable for All Seasons】The high density of the blackout curtains is a major advantage, as it makes it difficult for heat and cold to pass through. They prevent the room temperature from rising in the summer and from falling in the winter, improving the efficiency of air conditioning. Especially if you use blackout curtains in a room with strong afternoon sun, you can expect to save on your monthly electricity bill. ◆【Triple Weave Technology】The fabric utilizes a triple-layer technology that weaves in black threads, providing excellent blackout functionality. These thick blackout curtains effectively block sunlight and UV rays from the outside.