Made of 100% Polyester Material: Temporary blackout blinds are made of thick, sturdy, and soft fabric that blocks all light coming through the window. The opaque thermal insulation coating helps block light and UV rays from entering the room, fitting securely without gaps around the window. Helps keep your room cooler in summer and warmer in winter, improving sleep quality for babies, children, or adults. High Quality PU Nano-Adhesive: Travel blackout curtains feature nano tapes with strong adhesion, easy to apply and remove without leaving residue or marks on windows or frames. Tips: Clean the glass surface thoroughly before application. Dust or dirt may prevent proper adhesion. For best results, apply to a clean, smooth glass surface. Lightweight in a Handy Travel Bag: Compact and lightweight when folded, these blackout shades are easy to pack, store, and carry. Ideal for families, travelers, and renters. Provides a comfortable, dark sleeping environment, making it easy to rest while on vacation or business trips. Blackout Blinds Multiple Usages: Room-darkening window shades are suitable for bedrooms, studies, kitchens, living rooms, offices, bathrooms, garages, dens, and family rooms. Attach directly to glass windows or doors using the strong adhesive for an instant dark and private space, wherever you are. Precautions for using blackout curtains: Machine wash cold and line dry. Do not bleach, iron, or dry clean. Can be cut to fit most window sizes and shapes. Note: Leave a 2–3 cm border when cutting to minimize light leakage around the edges during use.