I use these bands for newspapers. I use at least 2 bags a month. They are a good value. I do notice that there are at least 5 or 6 bands in every box that break as I wrap them around the paper. I also notice scraps of rubber in the bags. (Maybe this is why they are the "economy" class.
I am using the rubber bands to secure cards to door knobs for a campaign involving over 7500 homes. These bands keep the info where it belongs. They get a lot of handling and RARELY have any broken. They are great!