I write books and these huge rubber bands are ideal for keeping manuscripts evenly alligned in mailing envelopes when sending them to prospective publishers. Usually one band vertically and one horizontally is sufficient but if a manuscript has more than say 300 pages then two in each direction might be necessary to keep the pages alligned in the envelope. And there is plenty of stretch in the bands to go around this number of pages without the pages buckling or bending; they stay perfectly flat.
I use the large rubber bands to go around the outside of my trash cans to hold the trash bag. They work great and are cheaper than the bands they sell that do the same thing. I also use them to go around large envelopes that I use for all my office work. They hold well and last for a long time.
I use this item a lot it helps with organization as well as just keep certain items together until I can get to them. I can use them outside the office for home and gardening (keeps items loosing staked as they continue to grow.