Zerust has proven to be the absolute best way to protect your tackle against rust and corrosion. Molded into our Tuff Tainer dividers, this patented polymer emits a harmless vapor, forming a protective layer around metal surfaces. With the Zerust VCI (Volatile Corrosion Inhibitor) molded directly into the plastic, there is no need for messy VCI cardboard chips that lose their potency when they get wet. All Zerust products will maintain their effectiveness for five years or more, so you can count on hassle free, long lasting protection. Anglers waste enough of their tackle investment through lost lures. Help them protect their tackle with Zerust Tuff Tainers. Look for the Zerust divider symbol next to those products that feature this revolutionary technology. This is just another innovation from Flambeau... your most trusted source in tackle storage.