The bags were quite sturdy and held up to the corners of furniture and all kinds of odd belongings. They’re gigantic. I was able to fit an entire coffee table in one (although I couldn’t tie it, I could easily tape it closed.) A guitar case fit in one with extra bag to tie off.We used these to get an air tight seal around our belongings during a move. We were getting away from a bad apartment in a building with a pre-existing pest problem which the landlord couldn’t seem to get under control, and we were determined not to take any little bugs with us. I’ve never seen a bug problem before, and it was nightmare. We sealed these bags air tight around furniture and other items, double bagged, removed all our sealed stuff from that building, and kept everything sealed long enough that no bugs or eggs could survive that time without food or water. It was a stressful endeavor, but these bags gave us peace of mind because they were so thick, we could tell air wasn’t escaping, and they fit everything we needed them to. That was 9 months ago and we don’t seem to have any pests now, so I guess it worked! We didn’t know how many bags we’d need when we bought them, and this was way more than enough for our one bedroom apartment (with more belongings than should really fit in a one-bed.) We have a bunch left and I don’t know how we’ll use them, but they seem worth holding on to for now. I would recommend these for anyone who could use industrial strength bags.