Rubber bands are designed for everyday use and industrial applications. Bands contain 55 percent rubber and some latex offering 700 percent stretch. Rubber bands only vary 30 percent after being stretched. Rubber bands are sustainable and biodegradable.
This Business Source BSN15750 Rubber Bands- Size 8- 1LB-BG- Natural Crepe is very nice , and works very well . I saved some money on it and I think you don't need to buy up a new rubberbands for a long period.