I'll start my review by the fact that I got them for making filters for use in hand made face masks as hepa vacuum bags are almost as effective as a N95 mask. The bags look exactly like the product photos and while I don't have a specific vacuum that uses them, I have used an old Electrolux vacuum that uses this stylish bag and I can say it seals the vacuum tube well. The rubber is soft and flexible. They weren't cheap at the time of my review so I can't comment on the price.