Rival Tech® Silage film - basis for high-quality silage. 5 layer technology silage film and 100% virgin raw materials are used,Website:http://www.rival-tech-bj.com, provide 12 month guarantee against UV degradation, features high UV stabilization and an airtight and weatherproof,that covers the silage as airtight as possible provides high compression with minimum use of material, reduce the cost,increase efficiency.