Pyramid Packaging is a supplier of pre-opened poly bags in a wide range of film types for virtually any bag packaging application. Deciding on the best flexible plastic film for your packaging application can be a complicated process. There are many variables to consider in order to best display and preserve your packaged product.Different poly bag materials are used for their unique characteristics, including clarity, strength, opacity, barrier properties, printability, puncture resistance, and other industry specifications. There’s a right tool for every job and there’s a correct bag for every packaging application. Pyramid Packaging can help you select which of the following types of films & variables are required for your packaging application. Some material types include films for mail order bags, mil spec bags, UV resistant bags, anti-static bags and much more. Below are common types of flexible packaging films used.