100pcs 3M anti-tarnish tabs. These tiny and easy to handle, 1" x 1" anti-tarnish tabs are perfect for tarnish protection. Put them in your cupboard, jewelry box, case, chest, or any where your metals are stored. Protects sterling silver, nickel, copper, bronze, base metals, brass, tin and gold. Last up to six months (up to one year in a sealed environment).