Achieve complete darkness and optimal room temperature with these blackout roller blinds. Designed for 100% light reduction, they are perfect for any room in your home or office. The blinds feature a silver-coated thermoplastic layer on the back, which not only blocks all incoming light but also provides thermal insulation, keeping your room warmer in winter and cooler in summer. Easy to install on walls or ceilings with the included mounting accessories, or simply hang them from a window ledge. The pull chain can be positioned on either the left or right side for your convenience. Key Features: - 100% light reduction for optimal darkness - Silver thermoplastic coating for thermal insulation - Includes mounting accessories for easy installation - Adjustable pull chain position (left or right) - Fabric size: 40 x 100 cm - Includes PVC bottom rail, aluminum top rail, polyester blind, brackets, pothook, ball chain, screws, and wall plugs. Product Summary: VIDAXL blackout roller blind, 40 cm wide, off white color, polyester fabric with silver reflective backside coating, ideal for light blocking and thermal insulation, includes all mounting hardware.