30 inch x 30 inch x 0.5 mil Low Density Poly Bags are your "basic" plastic bags. These flat lay bags are made from virgin polyethylene, and they meet LP-378 requirements and FDA requirements for food applications. These bags can hold everything from small parts to all types of food items. Our low density poly bags are also bottom sealed for extra strength. They can also be heat sealed to provide security and/or retain freshness.