Static Cling Total Blackout Window Film 100% UV Blocking Window Darkening Film Black Opaque Privacy Window Tint Removable Plastic Glass Covering (17.7x78.7 inches)

As other reviews have noted. the grid marked cellophane film is really difficult to separate from the (1/25” thick) material that goes onto the window. I'm 73 and my hands aren't steady, so here’s how I did it. Once you take the wrapping off, you'll see the end of the roll is taped to the rest of the roll at the middle and near the ends. Before you cut these at either end, lift the end of the material a little so the tape begins to lift from the roll so that you can cut the tape maybe an 1/8” beyond the end of the roll. This way you end up with a little tab of tape on the end of the roll which is where you can get a razor under the grid cellophane to create a starting point to lift and remove the grid cellophane. It is definitely easier to remove the grid cellophane from the edges of the roll. They should make this so the grid cellophane has little 1/4" tabs along the sides every 2" or so. Good stuff, nice surface one installed. One reviewer said you need 2 people. I did two 28 x 57” windows myself.Very warm when done but by night it was surface temp like the window frame. I had meant these pieces to go beyond the glass and onto the flat aluminum slats around the perimeter of the glass. However, once I began to squeegee the surface to eliminate air bubbles this drew the edges in toward the glass. I added black electrician’s tape on some spots so it stayed down on the aluminum flat pieces. The tape also ensured completed black-out. You could instead just cut to glass size like in their video and add electrician’s tape for complete blackout. Freakishly dark in my bedroom now.They recommend adding cloth to the squeegee, I did that by rubber banding piece of old tee shirt on my 99 cent store shower squeegee and on a small hand-held dish scarper/spatula. Both worked well.

I’m a night owl. This keeps my room nice and dark. I’m very happy. I ended up not adhering it the way the recommend because I was afraid I’d mess it up. I just put it up by using black electrician tape around the edges. Works great and keeps light from seeping through on the edges.

These work great. The directions say to cut the film an inch larger than you measure your window, in my experience a 1/2 inch worked better. As another reviewer stated , the manufacturer really needs to figure out a way to make it easier to peel off the backing. I would also like to see the measure marks on the backing be a 1/2 inch or even an inch rather than the 2 inch currently on there. There is a bit of a learning curve getting these installed but once you get it it’s easy as pie.Definitely would buy again, actually have already purchased more for smaller windows.

Trimming to size and install is very easy with soapy water. However, on warm days or very sunny days with the window heats up, it does fall off. Not enough to return it though as reinstalling is extremely easy

Contrary to the Amazon description, it’s NOT STATIC CLING. The instructions on the package say you have to spray a soap and water mixture on the window to get it to cling. I didn’t have a spray bottle, so I just peeled off the backing (not easy as other reviews point out) and used scotch tape to tape up panels I cut out. It was a pain to tape up panels and take them down every morning. I could have just used black cardboard at a fraction of the cost. Plus, I didn’t want to scum up my new windows with a film of soapy water.

This product does block 100% light, but the heat still comes through like it's a curtain instead of something that blocks UV. If all you want is the light blocked, look no further than this product. Super easy to install even for a novice like myself. Biggest challenge to installation is you cannot see where the air bubbles are unless you have clear and easy access to both sides of the installation pane but even with that small roadblock, you can cut, install, trim and work out bubbles in 15-20 minutes almost regardless of the size of glass you are installing on.

So my partner and I got these to black out our rental house bedroom, which has older windows that are all different window pane sizes. Measuring out the correct size to cut was pretty tricky and once installed the gaps are very noticeable, but that's only because they work so well. They block out most if not all the light, and keep our bedroom insulated, which is HUGE here in Phoenix. I highly recommend this product to anyone who wants a blacked-out room and heat insulation. I would just also recommend curtains to cover up any holes :D

If I had better cutting skills it would have turned out even better but this product is too good. I overslept first night. With a sharp exacto knife and a good card to flatten everything out, it should turn out perfect