1. Be VERY thorough when you clean the window! I can't stress this enough. If there is any kind of dust or particles this will affect how well the window film clings to the window. I'd also leave about a mm or 2 from the edges, sometimes the glue that was used to adhere the glass to the frame sticks out a little past the frame.2. When applying the film Spray BOTH the window and the cling side of the film GENROUSLY with water. I use plain water. I've installed several different films.3. If you find you have to peel it off or peel a corner back just make sure you use a lint free WET cloth to wipe the film then RESPRAY the film AND the window with water again. Squeegee the water out as normal.4. DAB the edges as you squeegee the water out. Don't wipe!! Especially not near the edges. Just dab it.The center circles gives a sort of shimmery look with movement.Installs very easily. The instructions say to cut the film one inch larger than the window, then trim once installed. If I had to do it over again, I'd cut the film to be the exact size it needed to be before installing - I wasn't able to cut a very straight line after installation.This privacy film is awesome. I live in a fish bowl that without curtains or drapes anyone can see right through my home. My home is small, drapes or curtains are heavy looking and make my rooms seem smaller, not to mention the expense. I covered half of my patio door, and half of my kitchen window. I live in town now, but use to live on a farm with lots of privacy. This plastic film works great. I have my privacy and the neighbors have theirs... It's not heavy looking, and my rooms don't seem bulky. It gives the rooms the elusion of being little bigger. Its very pretty and easy to put up, just remember measure twice and cut once... also spray lots of water on window.I USE FOR TALL WINDOWS, NEED MORE ADHESIÓNThe pattern is nice and the product is not see through although it does allow for a good amount of external light. I did not want anything too sheer so this worked for my use. However, applied according to the instructions and the film did not stick. Had to use spray adhesive to get it to stay. Corners and sides especially did not stick.Our Ring caught a peeping Tom looking in our house from this window. I knew we had to do something once I saw that! This was a perfect solution. It’s super pretty and easy to install!Easy to set upNoticeably reduced heat from afternoon sun in a small room. When the air conditioner stopped working, I was impressed that the product blocked the heat very well.