I was skeptical at first but I must say I'm pleased with the product and delivery time. I ordered the 24 inch and the 48 inch. It was flexible and installed easily in my crawlspace. I put the 24 inch inbetween my studs and the 48 inch below. Previously, I had fiberglass and a lot of mold. I'm sure that wasn't very healthy for me. I remember ordering on a Monday and was surprised to see them on my porch a couple days later.