Flat Poly Bag

Flat poly bags are made from virgin polyethylene and the most popular type of packaging plastic bags. Almost every type of industry makes use of flat poly bags in one form or another. These bags are open on one side and can package everything from small parts to all types of food items. They must be taped or twist tied for closure and can also be heat sealed to provide security and/or retain freshness.

How to measure a flat poly bag?
Not sure what thickness to use?