- Improve Sleep Quality: Blackout Window Films darken your windows,and provide privacy. For those who need daytime sleep. Provide a safe environment for you and your family. Protect your privacy and enhance security. - Premium materials: Portable blackout curtains feature PVC+metal rods, which block harmful UV rays and reduce external heat, while providing privacy to your room and creating a pleasant semi-dark atmosphere. - Easy installation: The blackout window can be easily installed and removed without drilling holes and attaches directly to the glass using suction cups. This portable blind is also suitable for travel and car shade. - Package includes: Material: PVC. 1x roller blind, with 3 suction cups, the roller blind is automatically retractable, delicate and compact, and easy to store. - Wide range of applications: This curtain can be used on car windows, bedrooms, offices, kitchens, bathrooms and other glass or smooth surfaces. It can be installed anywhere that needs to be shaded from the sun.