Coavas Blackout Window Film Static Cling: UV Blocking Window Privacy Film Room Darkening Frosted Glass Film Heat Control Window Tint Removable Window Coverings （Black,17.5 x 78.7inch）

This blackout window film is a great product to completely block out light and provide privacy. It is easy to apply but may be a challenge to use in large sheets. The film sticks well but it's important to cut it to exact sizes. In terms of reusability, some customers have had success using it again after removal, while others found it difficult to peel apart from the film. The product can be used on skylight windows and blocks all light, making the room pitch black. While it may block heat through the window, the film can get very hot to the touch when exposed to direct sunlight. It's also important to ensure that the room is well-measured to determine the amount of film needed.