I'm going to agree with the great reviews about this product. I will add that I did place some on a door and later realized a tree would leaf out and obliterate the sun in the summer. I was able to remove it without any damage and reattach it to the original paper I had separated it from and apply it many days somewhere else. It worked as good as new. It certainly throws color far beyond the beam of the light that strikes it. The film itself throws a translucent shadow. The rainbows will be thrown outwards so that many will appear far from where the sunlight falls. They'll travel through perpendicular doorways. I'm planning to procure some clear film sort of like for office report covers (but not that), anyway, something so I can more easily give hunks away that can attached with a double-sided tape (without taping to the rainbow film) that people can move through their homes with the seasons. I might add the product washes easily but perhaps do not use paper towels as they may scratch this as they do some plastics.

This is my 3rd order of this product. I have had some up for about a year and it looks as good as new. Have given most away. I did attach some to a 1'x2' piece of plexiglass and ended up with a couple if quarter sized bubble spots where it did not squeegee out which appeared kind of white, neither did a pinprick resolve the issue (still very cool & portable for rainbow parties...). My attempt to remove the rainbow film to redo it was unsuccessful as it has a tacky backing which was very stuck to the plexiglass so the end result is about an inch of the film looking kind of funky as it never resealed having transferred the 'glue' to the plexiglass. The effect is as tremendous however and I do not write to discourage its use for such an application but warn that the film is impossible to reposition on plastic and very probably will leave the entirety of its glue on the plexiglass once removed and most likely require a solvent along with scaping to get off. Trying to pull the holographic film off the plexiglass was impossible as the film was being separated from its glue though it had been only a minute.

The longer the distance the rainbows travel the larger they become, they retain their intensity. As little as a 4"x12" strip is quite magical.

I had bought this for years for friends and relatives as a gift but only recently did I realize we had a window with direct sunlight and some reflective surfaces nearby. So I finally paid the somewhat steep price for a small sheet of film, and cut it to apply only a narrow strip at the top of our front window (so as not to obscure the rest of the view). See for yourself - the results are even more impressive in person. Even our cat is impressed and playing in the rainbow!

The third picture shows the rainbows as they project to the furthest wall in our living room - maybe 50 feet from the window with the film. Sunlight goes farther when refracted with this film, which is an effect I hadn't considered. I bet my plants will appreciate it!

love it, would definitely buy again, the rainbows are very vivid when the sun hits the film the right way. installation was pretty simple, but i would recommend using gloves and plain water, rather than soap, to put it up, because the holographic part of the film seems to be a bit fragile and the soap and the oils from my hand were enough to rub a bit of it off around the edges

After months of rain and overcast skys i bought this and put it up. Within hours the sun came out and blessed me with absolutely gorgeous rainbows. 10/10 reccomend for banishing winter blues.

I wasn't going to write a review however this was very underrated as far as the reviews I'd seen prior to my purchase. This was worth every penny, the easiest way I found to apply this was spraying water on the window of course as well as the film (it made it more adjustable). I'll probably purchase this again in the future. Do buy. In love.