The large bags are a good size to fit a decent amount of items. They come with a shipping label, all you have to do is fill it, seal it, and slap the label on. I took one star off because the top of the bag is perforated with two sticky strips. I’m not sure the reason for this. I used both sticky strips because it didn’t seem like one would be enough to keep the bag sealed shut. Perhaps a little more instruction is necessary on this.