Copper Trinket box with Lid can be used for storage. This product is of 99% purity and wherever required is mixed with other metals for better utility. Copper gets tarnished because of oxidation due to atmospheric conditions or with regular usage over a period of time. It should be hand washed with mild liquid soap. Wipe and dry immediately after washing. Never use abrasive or acidic content for cleaning. These products should be used for dry serving only and not for food storage.