"Shrink Bags Globe Casing offers their quality Extra Clear shrink bags and has the ability to custom print on the shrink bags. Globe Casing stocks many industry standard sizes and offers an extremely competitive price. We also stock heavy duty bone guard shrink bags with thickness of 80-120 microns. ?Why Use Shrink Bags? When heat is applied to shrink bags, it creates a very tight seal and conforms the bag to the product. This plastic seal is then fully protecting the shrink wrapped contents. Once sealed, the items are no longer vulnerable to the damage that can be caused by dust, dirt or moisture. This is critical for meat suppliers as you need to keep your meat as fresh as possible for as long as possible."