How do I choose the proper film for a mailbag machine?

The equation to determine the proper film roll width for your product is as follows:

Double the width + Double the thickness + 1" 

For example, if the product is 7 inches wide and 1 inch thick, the equation would be 14" + 2" + 1", which equals 17".

This reassures that the 19 inch film roll will suit our product.