Albums have always been a good way to store your coins. Now you can enhance their protection with Littleton's patented Corrosion Protection pages made from Coroplast CI, which is scientifically proven to neutralize harmful gases in the air which can cause corrosion - with no harmful agents or chemicals. Just add two powerful inserts and custom slipcase (it is recommended that the pages be used with Littleton albums housed in a Littleton slipcase, not included) to your existing Littleton albums and give your coins the extra defense they'll need! (See links below for Littleton's complete Corrosion Protection Kits). And you'll always know your coins are protected in their current state, because the inserts clearly change from their bright copper color to gray when they need to be replaced. So powerful, you'll likely never see them change color in your lifetime! *These pages also fit other albums such as Dansco, Whitman, and Lighthouse, but are most effective, and it is recommended they are used with, Littleton albums housed in slipcase.