These laminating pouches are nice and thick and are correctly sized for an A4 sized paper. (standard sheet of paper) There's enough to leave a 1/4" edge once the paper is laminated. I bought these to use in an inexpensive laminator I just bought that came with a small assortment of 3-mil pouches. Those are just too thin for what I wanted them for so I chose these 5-mil pouches, hoping they wouldn't be too thick for my new machine. They worked great! I do have to be careful when feeding these into my machine since there is almost no room for error, maybe 1/4" on each side of the slot. That's barely enough for me to have the trailing edge of these pouches start touching the sides of the feeder slot and begin to bend before going into the laminator. I rarely get them completely straight but it's good enough and they come out perfect.These are clear and come out with no waviness or wrinkles. I've had no air pockets except in large areas with nothing in it, so it doesn't matter. Good value for the number of pouches you get, definitely will be buying more in the future.