Popular size VCI bin liner bags prevent corrosion on metal parts during all stages of fabrication, in storage and shipment. Bags, 20 per roll, are 4 mil Premium Metal-Guard VCI film, the industry standard for corrosion inhibitor packaging. Flexible, transparent film provides a barrier between metal surfaces and corrosive effects of corrugated and wooden crates. VCI film provides clean, dry, corrosion inhibitor protection. Also available in other gussetted bag sizes.