Feature:1. It retain heat in winter and keep it out in summer, helping reduce expensive heating and cooling cost, energy saving. 2. The window film blocks infrared and ultraviolet light and reflects 90% of the infrared and 85% of the ultraviolet light outside the window. 3. The privacy effect is reversed at night because the interior exposes more light than the outdoor, so please pull the curtains at night. 4. It is a one-way privacy protection window film with functions of blocking heat, heat control, sun protection, electrostatic adhesion, UV protection and detachability. 5. This window film has a privacy rate of 15% and does not completely obscure privacy. It provides good privacy only during the day, while the exterior glass shows a mirror effect. Specification:Condition: 100% Brand NewItem Type: Window FilmMaterial: PVCColor: BlackProduct Size: Approx. 0.5m x 3 meters / 1.6ft x 9.8ftWeight: Approx. 180g / 6.3ozMethod:1. Thoroughly clean the window that the film will be applied to.2. Cut your film to size of the window, adding an additional 2cm to the width and height.3. Remove the clear lining film from back of the window film and spray the adhesive back of the film, as well as your fingers, with the soapy water solution. (Tip: If you cannot remove the clear lining film, attach a piece of sticky tape to either side of the film at one corner and peel away from each other).4. Spray the glass with the soapy water.5. Apply the adhesive side of the film onto the glass and slide into position.6. Spray the face of the film with the soapy water and using a squeegee or credit card wrapped in paper towel, squeegee out all the soapy water from behind the film.7. Trim off any excess film using a incisive knife for a neat finish.Package List:1 x Window FilmNote:1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.