This is a plastic bag with folds. I'm giving it 3 stars because they aren't as strong as other 1.5 mil polypropylene bags I've bought before and because I'm a nice guy. I cannot open other bags that I have bought by blowing into them with my mouth. They popped out too easily because I blew on them with my mouth. I am really disappointed. I don't like pushing sellers off the sell side. So if you're looking for a bag that doesn't need to be that durable, here's your bag. Otherwise, you might want to get a thicker bag. I will do that. And to be honest I will choose another brand.
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