3M Anti-Tarnish Paper Tabs 1" Square Gold & Silver Tarnish Preventer (100 tabs) 3M Brand Anti-Tarnish Tabs provide Anti-Oxidation protection to sterling silver, gold, pewter, copper & brass, and other fine metals. Provides up to 2 years of oxidation protection. Each 1x1" tab provides anti-oxidation protection of up 30 cubic inches of container space. Treated tabs are non-toxic, and can be packaged with direct contact your products. Perfect for jewelry hobbyist, collector, or artisians of fine jewelry. Also perfect for online sellers where jewelry may sit for a while.