Features Sun Protection. Blocking 99% of ultraviolet rays, effectively blocking harmful sun rays. Protect your whole family from UV harm. Minimizes furniture fading from the sun. Heat Control. In summer, rooms with window film are cooler than rooms without window film. Mirror Effect.The film creates a mirror effect during daytime that enhanced the privacy. Self-adhesive film is easy to install. Available in 2 colors: silver, black. The silver film has better light transmission while the black film has better thermal insulation.Use Steps: Step 01: Measure and cut the film(a little larger than the format you need); Step 02: clean the window glass and Spray a small amount of water on the glass surface; Step 03: privately protect the film and attach the heat insulation film to the glass; Step 04: Smooth the bubbles with a card, Cut off excess corners and wipe off moisture.Package Included: 1 X Roll Window Film