Struggle to store your jewellery safely? Our anti-tarnish bags do exactly as they say - they protect your sterling silver and gold jewellery from tarnishing. tarnishing is caused by an oxidisation process with the air, which is why keeping them sealed in air tight bags is the safest place for them. the bags absorb tarnish causing gases, and second, they react with and permanently neutralize those corrosive gases. This dual form of protection eliminates the two elements needed to form atmospheric corrosion. This is a small, 2x3 inch pack of 3 and you can store gold and silver in the same bag. The bags are very durable and are designed to last up to 10 years and Intercept Technology‚Ñ¢ polymers are non-toxic, non-abrasive, and environmentally friendly. Intercept‚Ñ¢ does not emit any chemicals or oils and will not leave deposits on the jewellery it protects.