MJSPONIES Got it from Leisure Living on EBay. It is 12 ml and is 14 x 28 for $81 including shipping. It is sort of small bubbles. Its working great. We are in central Texas and it can occasionally get down to 22 but we aren't as cold as some of the northern states. Some folks in the colder areas get 16 ml which is more expensive and I think heavier. I liked what I got as it is flexible and easy to drape and work with and it seems to be doing the job for us. They have smaller sizes too. My GH is only 6 x 8 and I have lots left over for some cold frames and a small pop up green house.