Use Zerust ICT Yellow Bags to protect ferrous metal components like machined parts, engines and tools or any ferrous metal item you want to protect from rust and corrosion. The Zerust ICT Yellow Ferrous Films that the bags are made out of is the most widely used Zerust packaging product and has proven its performance with thousands of customers worldwide for over 20 years. Protect any iron, steel, or cast iron metal on items such as electronics, tools, hardware and spare parts. Zerust ICT Ferrous Film Bags are an easy-to-use packaging solution that contains the proven Zerust ICT corrosion inhibiting technology. Just place your clean item in the bag and close for protection of up to 5 years. The Zerust VCI Poly Bags bags provide protection against corrosion damage for ferrous metals, such as iron, steel or cast iron, in typical storage conditions. Size: 12 in x 42 in Thick: 4 mil