Pre-Opened Bags are designed to run on auto packing machine. It will increase production output compared to using flat poly bags when packing parts, toys, kits, and other items. These pre-opened bags (on-a-roll) are made of a specially formulated, FDA approved, linear low density polyethylene (LDPE) material, providing a higher strength at a lower thickness than traditional LDPE. Perforated on a roll with a slit front for faster loading. Perforated for easy insertion and tear-off, makes them ideal for high volume packaging operations.