A.Unique Home Premium Trimmable Thermal Blackout Roller Window Blind. This blind is ideal for any room, offering 100% thermal blackout with 3-pass fabric and a colour-matched reverse. Made from 100% polyester, it's designed for easy installation with supplied fittings and clear instructions. The blind can be trimmed to your desired size and features a height-adjustable chain with a child safety clip for added safety. Available in 20 colours and five standard sizes, it helps trap heat in winter and keep it out in summer.