Premium Metal-Guard resealable poly bags, 3″ x 5″, prevent corrosion on packaged metal parts. Bags have a zipper-top opening. Flexible, transparent film, tinted Daubert blue, has proprietary corrosion inhibitors blended throughout, not superficially applied. Safe, non-toxic, recyclable, VCI bags prevent corrosion on ferrous and non-ferrous surfaces — brass, copper, bronze, iron, steel. Metal stays clean, dry, and corrosion-free during storage and shipment.