How long will it stick to windows and glass?

Magic Blackout Blind is designed to be used early evening until morning and for afternoon naps. For best results, Magic Blackout Blind should not be permanently applied to windows. It is advised that the film be removed daily and stored on a hard flat surface like a wall or wardrobe door when not in use to retain static. If this process is followed, Magic Blackout Blind sheets will typically last 6-8 weeks. 

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