Need to automatically bag and protect your heavy or sharp products efficiently with little to no finagling? These standard 4 mil Pre-Opened Bags On Rolls with a clear back for presenting your product are just what you need. These pre-opened packaging bags are separated by perforations with a one-sided opening for manually hand filling or using an automatic bag loading machine. All of our 4 Mil Automated Bags On A Roll meet FDA/USDA specifications and are safe for packaging food products.