These blockout curtains with coating on the reverse of the fabric blocks out sunlight and harmful UV rays, and also help to filter outside noise. With a grommet top design, you can easily hang them up with your curtain rod, giving your windows a stylish look. The beautiful jacquard fabric will add stunning texture and depth to your room. TIP:For the best fullness, blockout properties and insulative benefits your curtain total width should be 2-3 times your window width. For best results 280cm would suit windows around 90cm - 140cm.