1. Easy to Install: 2 curtains per package. Each curtain measures 198 x 150 cm (W x L). Featuring elegant silver metal grommets with a 4.1 cm inner diameter, they fit most curtain rods . Simple to hang and glide smoothly. Made of polyester, from chemical coatings and formaldehyde, ecofriendly, bringing harmony to your home. 2. Energy Saving: These bedroom curtains retain warmth on colder days. The insulated design helps balance room temperature by blocking summer heat or winter cold, ideal for saving on electricity bills. 3. Maximum Blackout: With black backing, these 100% lightblocking curtains are thick enough to completely shield sunlight. These roomdarkening curtains create a truly dark environment for sleeping, even on bright sunny days. Enjoy restful sleep while protecting furniture from fading. 4. Noise Reducing: These heavy, doublelayered curtains effectively absorb sound twice as well as standard singlelayer curtains, shielding you from external disturbances like neighbors or traffic noise. performance in blackout, insulation, noise reduction, energy efficiency, and privacy.