These are remnants from a larger roll, so have never been used (or even unrolled) and were just bought from the supplier a few weeks ago. Both are SunMaster 6-mil film. Both are UV-treated and one is also IR-treated. We used the rest of the rolls to cover our hoop house and don't have any use for this size on the farm. $140 each. Please call 323-9723 or email firstname.lastname@example.org.