Like a couple of other people have mentioned, these are too small to be called #0. We sell DVDs and have purchased tens of thousands of bubble mailers from various manufacturers. A DVD will barely fit in these. When we ship a DVD, we include literature with a rubber band around it. It's like torture getting these in there.And again like another reviewer said, the bubbles are very flat and there just isn't that much protection.The adhesive is another problem. It is not evenly distributed and there are often streaks or even blank areas which has required us to use tape to make sure they stay shut.To sum it up, they're pretty much useless. Better to spend a little more and get a quality mailer that is the correct size, cushioning and adhesive quality.