Industry standard size for bologna, salami and summer sausage. Holds approximately four pounds. Stuffed diameter is 2.87". NON-RETURNABLE Ordering 500 or more? Place your order by phone to take advantage of our quantity discount. NOTE: Casings may burst, and that is most often due to processing errors -- cooking too fast or too hot. Casings are somewhat porous, and moisture can escape at only a slow rate. Cooking too fast overwhelms the porosity of the casing, causing a burst. This can happen with even large (5-inch in diameter) fibrous casings, which are among the strongest casings available anywhere. Please be careful to follow proper processing techniques, or call us for help if you are unsure.