These are a decent value for the money when you go through a lot of envelopes. However, they are thinner paper and the back-sides, where you slide in your documents is really narrow, so when stuffing papers in, I usually use a corner of the document to slip under one side flap, then slip it into the flap on the other side, the first holds it in place, so you can push the papers down into the envelope. The narrow flaps don't hold the papers adequately, so they get caught on the back of the envelope. It's just a little annoying to constantly have to hold those side flaps out while stuffing the envelopes.
Rating: [4 of 5 Stars!]