Excellent Material Made of 100% polyester material fabrics with reinforce thermal insulated coating, feeling soft and smooth. No burrs, wear resistance, and easy to clean. Our blackout blinds block 120% of sunlight and UV rays. The thermal backing reduces the loss of room heat and cold through the windows in winter and summer, helping to reduce your energy bills. New Innovative Design : The cordless design is safer for kids and pets. The cordless roller blinds are more convenient than corded roller blinds.