For individual and in-line tube wrapping of bale silage/haylage. The wrap/film protects the bale from oxygen so the fermentation process can occur and also protects the bales from the weather. Stretches to wrap around the bale. Clings on both sides of film. 1 mil thick. Traditional white color. One roll of silage film does approximately 25 - 30 bales of hay depending on bale size, wrap size, and a variety of other factors. Common sizes include: 20" width (500mm) X 6,000' length (1800m) 30" width (750mm) X 5,000' length (1500m)