Product review (3 stars): Just a bunch of really thin and weak tin foil
So, basically, if it is not already apparent to you, that this is merely corrugated foil. It will get the job done,
but if you prefer something better, look for insulated/black on the outside, silver on the inside stuff!!! It has far better
thermodynamic cooling properties. As for this stuff.... if its more than 5 dollars in all, then we strongly recommend buying the black insulated for around
25' for about 15.00 including shipping. Search around, if its the quality you are truly after. Otherwise, this stuff is okay, and will do its job, but tears very easily,
and is just as easily FIXED with duct tape wherever you feel air, or find tears in it. (Is not DUCT TAPE one of the best things in the WORLD!! Right up there with Screwdriver!! IMHO!)

Have a nice day!