Keep your finished jewelry and jewelry components safe from tarnish with these anti-tarnish tabs. Helps to prevent tarnish and corrosion by absorbing damaging moisture and other atmospheric dangers. Protect silver, nickel, copper, bronze, brass, gold, and pewter. Not just for jewelry, you can use these tabs with your fine silver ornaments, dinnerware, musical instruments, and trophies too. A paper tab measuring 1 x 1 inch is good for up to 30 cubic inches of air space (approximately a 3 inch box). The strips will protect for up to 6 months, depending on the frequency and amount of exposure to air. Can last up to one year in a sealed, airtight environment. Safe to use, these paper tabs are non-toxic and do not emit any chemical residues. To use: Place a tab in jewelry boxes, storage bags, silverware chests, instrument or trophy cases. Best if used in a sealed, air tight container. Keep spare tabs stored in a sealed, airtight container. Please note that these are made in the U.S.A. and these are ideal to protect your silver items (especially sterling silver jewelry and components from tarnishing.