TarnishGuard 2" x 7" Anti-Tarnish Strips come in a pack of 10, designed for larger storage areas ranging from 30 to 424 cubic inches. These strips utilize advanced, breakthrough technology that reacts with and permanently neutralizes gases responsible for tarnish and corrosion. They provide up to 12+ months of continuous protection, helping to keep jewelry, flatware, holloware, and electronics free from tarnish and oxidation. For optimal results, use one strip per 424 cubic inch container. The strips are non-abrasive and suitable for both metal and non-metallic valuables, preventing future tarnish when used properly. Please note, these strips do not remove existing tarnish but are effective in preventing new tarnish and corrosion. Designed to be placed alongside valuables in dry containers, they offer a reliable solution for maintaining the appearance and integrity of stored items over extended periods.